{"id":30322,"date":"2025-09-26T17:04:40","date_gmt":"2025-09-26T14:04:40","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/hicbir-etiketi-bulunamadi-3\/"},"modified":"2025-09-26T17:58:34","modified_gmt":"2025-09-26T14:58:34","slug":"%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/","title":{"rendered":"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9"},"content":{"rendered":"<p><body><br \/>\n    \u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9\ud83e\ude9d<\/p>\n<p>\n        React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern&#8217;lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. Haz\u0131r m\u0131s\u0131n\u0131z?\n    <\/p>\n<h2 id=\"giris-neden-react-patternlari-bu-kadar-onemli\">Giri\u015f: Neden React Pattern&#8217;lar\u0131 Bu Kadar \u00d6nemli?<\/h2>\n<p>\n        React, deklaratif yap\u0131s\u0131 ve bile\u015fen tabanl\u0131 mimarisiyle web geli\u015ftiricilerine m\u00fcthi\u015f bir esneklik sunar. Ancak bu esneklik, beraberinde belirli zorluklar\u0131 da getirir: Kod tekrar\u0131, bile\u015fenler aras\u0131 ileti\u015fim karma\u015fas\u0131, performans darbo\u011fazlar\u0131 ve b\u00fcy\u00fck \u00f6l\u00e7ekli projelerde artan bak\u0131m maliyeti. \u0130\u015fte tam da bu noktada, React tasar\u0131m kal\u0131plar\u0131 devreye giriyor. Bu kal\u0131plar, React&#8217;in sundu\u011fu olanaklar\u0131 en verimli \u015fekilde kullanarak ortak problemleri \u00e7\u00f6zmek i\u00e7in kabul g\u00f6rm\u00fc\u015f, test edilmi\u015f yakla\u015f\u0131mlard\u0131r.\n    <\/p>\n<p>\n        Basit\u00e7e ifade etmek gerekirse, React pattern&#8217;lar\u0131, projelerinizi daha mod\u00fcler, anla\u015f\u0131l\u0131r, test edilebilir ve \u00f6l\u00e7eklenebilir hale getiren d\u00fc\u015f\u00fcnce bi\u00e7imleri ve uygulama stratejileridir. Bir problemi \u00e7\u00f6zmek i\u00e7in y\u00fczlerce farkl\u0131 yol varken, bu kal\u0131plar size en iyi uygulamalar\u0131 sunarak tekerle\u011fi yeniden icat etme zahmetinden kurtar\u0131r. Bu sayede, daha az hata yapar, daha h\u0131zl\u0131 geli\u015ftirir ve tak\u0131m arkada\u015flar\u0131n\u0131zla daha uyumlu \u00e7al\u0131\u015f\u0131rs\u0131n\u0131z.\n    <\/p>\n<p>\n        Bu makaledeki temel amac\u0131m\u0131z, sizi bu kal\u0131plar denizinde y\u00fczd\u00fcrmek ve her birinin derinliklerine inerek ger\u00e7ek potansiyellerini ortaya koymak. \u00d6\u011frenme yolculu\u011fumuza en temelden ba\u015flay\u0131p, karma\u015f\u0131k senaryolara uzanan bir yol haritas\u0131 izleyece\u011fiz. Her bir b\u00f6l\u00fcm, bir \u00f6ncekinin \u00fczerine in\u015fa edilerek bilginizi sa\u011flamla\u015ft\u0131racak ve sizi React&#8217;in inceliklerine hakim bir uzman haline getirecek. Unutmay\u0131n, iyi bir mimar nas\u0131l ki sa\u011flam temeller \u00fczerine dayan\u0131kl\u0131 yap\u0131lar in\u015fa ediyorsa, iyi bir React geli\u015ftiricisi de sa\u011flam tasar\u0131m kal\u0131plar\u0131yla g\u00fc\u00e7l\u00fc uygulamalar in\u015fa eder.\n    <\/p>\n<h2 id=\"ogrenme-yol-haritasi-react-pattern-yolculugunuz\">\u00d6\u011frenme Yol Haritas\u0131: React Pattern Yolculu\u011funuz<\/h2>\n<p>\n        React geli\u015ftirme ser\u00fcveninizde, ba\u015flang\u0131\u00e7 seviyesinden uzmanl\u0131\u011fa giden yolculu\u011funuzu daha anla\u015f\u0131l\u0131r k\u0131lmak i\u00e7in bir yol haritas\u0131 \u00e7izdik. Bu harita, makale boyunca i\u015fleyece\u011fimiz konular\u0131 hangi s\u0131rayla ele alaca\u011f\u0131m\u0131z\u0131 ve her seviyenin ne gibi beceriler kazand\u0131raca\u011f\u0131n\u0131 g\u00f6sterir.\n    <\/p>\n<h3>Yeni Ba\u015flayanlar \u0130\u00e7in Temeller: React Bile\u015fenleri Nas\u0131l Olu\u015fturulur?<\/h3>\n<p>\n        React&#8217;e yeni ad\u0131m atanlar i\u00e7in, her \u015feyin temelinde bile\u015fen (component) kavram\u0131 yatar. Bile\u015fenler, React uygulamalar\u0131n\u0131n yap\u0131 ta\u015flar\u0131d\u0131r ve uygulaman\u0131n kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fc (UI) olu\u015fturan ba\u011f\u0131ms\u0131z, yeniden kullan\u0131labilir par\u00e7alard\u0131r. Bu b\u00f6l\u00fcmde, bile\u015fenlerin nas\u0131l olu\u015fturuldu\u011funu, props (\u00f6zellikler) arac\u0131l\u0131\u011f\u0131yla veri al\u0131\u015fveri\u015fini ve state (durum) y\u00f6netimiyle etkile\u015fimli aray\u00fczler geli\u015ftirmeyi \u00f6\u011freneceksiniz. Bu temel bilgiler, sonraki daha karma\u015f\u0131k kal\u0131plar\u0131 anlaman\u0131z i\u00e7in sa\u011flam bir zemin olu\u015fturacakt\u0131r.\n    <\/p>\n<ul>\n<li>\n            <strong>Bile\u015fen Olu\u015fturma:<\/strong> Fonksiyonel ve S\u0131n\u0131f Bile\u015fenleri (g\u00fcncel projelerde genellikle fonksiyonel bile\u015fenler tercih edilir).<\/p>\n<pre><code>\r\n\/\/ Fonksiyonel Bile\u015fen \u00d6rne\u011fi\r\nimport React from 'react';\r\n\r\nfunction HosgeldinMesaji(props) {\r\n  return <h1>Merhaba, {props.ad}!<\/h1>;\r\n}\r\n\r\nexport default HosgeldinMesaji;\r\n            <\/pre>\n<p><\/code><br \/>\n            Bu basit \u00f6rnek, bir fonksiyonel bile\u015fenin nas\u0131l tan\u0131mland\u0131\u011f\u0131n\u0131 ve kendisine d\u0131\u015far\u0131dan verilen <code>ad<\/code> prop'unu nas\u0131l kulland\u0131\u011f\u0131n\u0131 g\u00f6sterir. Prop'lar, bile\u015fenler aras\u0131nda veri ak\u0131\u015f\u0131n\u0131 sa\u011flayan ana mekanizmad\u0131r.\n        <\/li>\n<li>\n            <strong>Props Kullan\u0131m\u0131:<\/strong> Bile\u015fenler aras\u0131 veri aktar\u0131m\u0131.\n        <\/li>\n<li>\n            <strong>State Y\u00f6netimi (useState Hook'u ile):<\/strong> Bile\u015fenlerin kendi i\u00e7inde durum tutmas\u0131 ve g\u00fcncellenmesi.<\/p>\n<pre><code>\r\n\/\/ State \u00d6rne\u011fi (say\u0131c\u0131)\r\nimport React, { useState } from 'react';\r\n\r\nfunction Sayac() {\r\n  const [sayi, setSayi] = useState(0);\r\n\r\n  return (\r\n    <div>\r\n      <p>\u015eu anki say\u0131: {sayi}<\/p>\r\n      <button onClick={() => setSayi(sayi + 1)}>Artt\u0131r<\/button>\r\n      <button onClick={() => setSayi(sayi - 1)}>Azalt<\/button>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default Sayac;\r\n            <\/pre>\n<p><\/code><br \/>\n            Yukar\u0131daki <code>Sayac<\/code> bile\u015feni, <code>useState<\/code> hook'unu kullanarak <code>sayi<\/code> ad\u0131nda bir durum de\u011fi\u015fkeni tan\u0131mlar. Bu de\u011fi\u015fken, bile\u015fenin i\u00e7inde tutulan dinamik veriyi temsil eder ve <code>setSayi<\/code> fonksiyonu ile g\u00fcncellendi\u011finde bile\u015fen yeniden render edilir.\n        <\/li>\n<li>\n            <strong>Bile\u015fen Kompozisyonu:<\/strong> K\u00fc\u00e7\u00fck bile\u015fenleri birle\u015ftirerek daha b\u00fcy\u00fck ve karma\u015f\u0131k bile\u015fenler olu\u015fturma. Bu, React'in en temel ve g\u00fc\u00e7l\u00fc prensibidir.<\/p>\n<pre><code>\r\n\/\/ Bile\u015fen Kompozisyonu \u00d6rne\u011fi\r\nimport React from 'react';\r\n\r\nfunction Buton({ onClick, metin }) {\r\n  return <button onClick={onClick}>{metin}<\/button>;\r\n}\r\n\r\nfunction Kart({ baslik, icerik, butonMetni, onButonClick }) {\r\n  return (\r\n    <div style={{ border: '1px solid gray', padding: '10px', margin: '10px' }}>\r\n      <h3>{baslik}<\/h3>\r\n      <p>{icerik}<\/p>\r\n      <Buton onClick={onButonClick} metin={butonMetni} \/>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nfunction Uygulama() {\r\n  return (\r\n    <div>\r\n      <Kart\r\n        baslik=\"React \u00d6\u011fren\"\r\n        icerik=\"Bu makale ile React pattern'lar\u0131n\u0131 ke\u015ffedin!\"\r\n        butonMetni=\"Hemen Ba\u015fla\"\r\n        onButonClick={() => console.log('Ba\u015fla t\u0131kland\u0131!')}\r\n      \/>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default Uygulama;\r\n            <\/pre>\n<p><\/code><br \/>\n            Burada <code>Kart<\/code> bile\u015feni, <code>Buton<\/code> bile\u015fenini kendi i\u00e7inde kullanarak daha karma\u015f\u0131k bir aray\u00fcz eleman\u0131 olu\u015fturur. Bu, React'in \"k\u00fc\u00e7\u00fck, odaklanm\u0131\u015f bile\u015fenler olu\u015ftur ve onlar\u0131 birle\u015ftir\" felsefesinin en g\u00fczel \u00f6rne\u011fidir.<\/p>\n<p>            <i>Uzman \u0130pucu: \u0130yi bir bile\u015fen kompozisyonu, kodunuzu daha okunabilir, daha test edilebilir ve daha az ba\u011f\u0131ml\u0131 hale getirir. Her bile\u015fenin tek bir sorumlulu\u011fu olmas\u0131na \u00f6zen g\u00f6sterin.<\/i>\n        <\/li>\n<\/ul>\n<p>\n        Bu temel bilgilerle donand\u0131ktan sonra, art\u0131k React ekosistemindeki daha ileri seviye pattern'lar\u0131 anlamaya haz\u0131rs\u0131n\u0131z. Her pattern, belirli bir problemi \u00e7\u00f6zmek i\u00e7in \u00f6zelle\u015fmi\u015f bir yakla\u015f\u0131md\u0131r ve bu yolculu\u011fun sonunda, projenizin ihtiya\u00e7lar\u0131na g\u00f6re en do\u011fru pattern'\u0131 se\u00e7ebilen bir uzman olacaks\u0131n\u0131z.\n    <\/p>\n<h3>Orta D\u00fczey Geli\u015ftiriciler \u0130\u00e7in: Kod Tekrar\u0131n\u0131 Azaltma ve Ayr\u0131\u015ft\u0131rma Stratejileri<\/h3>\n<p>\n        React projeleri b\u00fcy\u00fcd\u00fck\u00e7e, kod tekrar\u0131 ve bile\u015fenler aras\u0131 s\u0131k\u0131 ba\u011f\u0131ml\u0131l\u0131k gibi sorunlarla kar\u015f\u0131la\u015fmak ka\u00e7\u0131n\u0131lmaz hale gelir. Orta d\u00fczey React pattern'lar\u0131, bu problemleri \u00e7\u00f6zmek ve uygulaman\u0131z\u0131n mimarisini daha d\u00fczenli hale getirmek i\u00e7in g\u00fc\u00e7l\u00fc ara\u00e7lar sunar. Bu b\u00f6l\u00fcmde, Container\/Presenter, Context API gibi kal\u0131plar\u0131 inceleyerek kodunuzu daha mod\u00fcler ve y\u00f6netilebilir hale getirme yollar\u0131n\u0131 \u00f6\u011frenece\u011fiz.\n    <\/p>\n<h4>1. Container\/Presenter (Ak\u0131ll\u0131\/Aptal Bile\u015fenler) Pattern'\u0131 Nedir?<\/h4>\n<p>\n        Bu pattern, bile\u015fenleri iki ana kategoriye ay\u0131r\u0131r:\n    <\/p>\n<ul>\n<li>\n            <strong>Container Bile\u015fenleri (Ak\u0131ll\u0131):<\/strong> Veri ve i\u015f mant\u0131\u011f\u0131ndan sorumludur. Genellikle bir Redux store'a, Context API'ye veya bir API'ye ba\u011flan\u0131r. Kendi i\u00e7inde state tutar ve \u00e7ocuklar\u0131na prop olarak veri ve callback fonksiyonlar\u0131 iletir. Genellikle DOM i\u015faretlemesi (markup) i\u00e7ermez, sadece \u00e7ocuk bile\u015fenlerini render eder.\n        <\/li>\n<li>\n            <strong>Presenter Bile\u015fenleri (Aptal):<\/strong> Sadece UI render etmekten sorumludur. Prop'lar\u0131 al\u0131r ve bunlar\u0131 do\u011frudan kullan\u0131r, kendi i\u00e7inde i\u015f mant\u0131\u011f\u0131 veya veri \u00e7ekme operasyonlar\u0131 bar\u0131nd\u0131rmaz. Genellikle stil ve g\u00f6r\u00fcn\u00fcm odakl\u0131d\u0131r. Yeniden kullan\u0131labilirli\u011fi y\u00fcksektir.\n        <\/li>\n<\/ul>\n<p>\n        <strong>Neden Kullan\u0131l\u0131r?<\/strong> Bu ayr\u0131m, sorumluluklar\u0131 netle\u015ftirir, bile\u015fenlerin yeniden kullan\u0131labilirli\u011fini art\u0131r\u0131r ve test etmeyi kolayla\u015ft\u0131r\u0131r.\n    <\/p>\n<pre><code>\r\n\/\/ Presenter Bile\u015fen \u00d6rne\u011fi: KullaniciBilgileri.js\r\n\/\/ Bu bile\u015fen sadece prop'lar\u0131 al\u0131r ve render eder.\r\nimport React from 'react';\r\n\r\nfunction KullaniciBilgileri({ ad, email }) {\r\n  return (\r\n    <div>\r\n      <p><b>Ad:<\/b> {ad}<\/p>\r\n      <p><b>Email:<\/b> {email}<\/p>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default KullaniciBilgileri;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ Container Bile\u015fen \u00d6rne\u011fi: KullaniciProfili.js\r\n\/\/ Bu bile\u015fen veriyi y\u00f6netir ve Presenter bile\u015fene aktar\u0131r.\r\nimport React, { useState, useEffect } from 'react';\r\nimport KullaniciBilgileri from '.\/KullaniciBilgileri'; \/\/ Presenter bile\u015fenimizi import ediyoruz\r\n\r\nfunction KullaniciProfili() {\r\n  const [kullanici, setKullanici] = useState(null);\r\n  const [yukleniyor, setYukleniyor] = useState(true);\r\n\r\n  useEffect(() => {\r\n    \/\/ Ger\u00e7ek d\u00fcnya senaryosunda burada bir API \u00e7a\u011fr\u0131s\u0131 olurdu\r\n    setTimeout(() => {\r\n      setKullanici({ ad: 'Fatih Soysal', email: 'info@fatihsoysal.com' });\r\n      setYukleniyor(false);\r\n    }, 1500);\r\n  }, []);\r\n\r\n  if (yukleniyor) {\r\n    return <div>Kullan\u0131c\u0131 bilgileri y\u00fckleniyor...<\/div>;\r\n  }\r\n\r\n  if (!kullanici) {\r\n    return <div>Kullan\u0131c\u0131 bulunamad\u0131.<\/div>;\r\n  }\r\n\r\n  return (\r\n    <div>\r\n      <h2>Kullan\u0131c\u0131 Profili<\/h2>\r\n      <KullaniciBilgileri ad={kullanici.ad} email={kullanici.email} \/>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default KullaniciProfili;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>KullaniciProfili<\/code> (Container) veriyi y\u00f6netirken, <code>KullaniciBilgileri<\/code> (Presenter) sadece bu veriyi g\u00f6sterir. Bu net ayr\u0131m, uygulaman\u0131n genel yap\u0131s\u0131n\u0131 daha anla\u015f\u0131l\u0131r k\u0131lar.\n    <\/p>\n<h4>2. Context API: Prop Drilling Problemine \u00c7\u00f6z\u00fcm Nas\u0131l Getirilir?<\/h4>\n<p>\n        B\u00fcy\u00fck React uygulamalar\u0131nda, prop'lar\u0131 derinlemesine i\u00e7 i\u00e7e ge\u00e7mi\u015f bile\u015fen a\u011fac\u0131nda birden \u00e7ok seviye a\u015fa\u011f\u0131ya do\u011fru iletmek zorunda kalmak (\"prop drilling\" olarak adland\u0131r\u0131l\u0131r) yayg\u0131n bir problemdir. Bu, kodu okunaks\u0131z hale getirir, bak\u0131m\u0131 zorla\u015ft\u0131r\u0131r ve hatalara yol a\u00e7abilir. React'in Context API'si, bu sorunu \u00e7\u00f6zmek i\u00e7in tasarlanm\u0131\u015ft\u0131r.\n    <\/p>\n<p>\n        <strong>Context API Nedir?<\/strong> Context, prop'lar\u0131 her seviyede manuel olarak ge\u00e7irmeden bile\u015fen a\u011fac\u0131ndaki verilere eri\u015fim sa\u011flamak i\u00e7in bir yol sunar. Genellikle uygulama genelindeki temalar, kullan\u0131c\u0131 kimlik do\u011frulama bilgileri veya dil tercihleri gibi verileri payla\u015fmak i\u00e7in kullan\u0131l\u0131r.\n    <\/p>\n<pre><code>\r\n\/\/ Context Olu\u015fturma: TemaContext.js\r\nimport React, { createContext, useState, useContext } from 'react';\r\n\r\n\/\/ 1. Context'i olu\u015ftur\r\nconst TemaContext = createContext();\r\n\r\n\/\/ 2. Provider bile\u015fenini olu\u015ftur\r\nexport const TemaProvider = ({ children }) => {\r\n  const [tema, setTema] = useState('light'); \/\/ Varsay\u0131lan tema\r\n  const toggleTema = () => {\r\n    setTema((prevTema) => (prevTema === 'light' ? 'dark' : 'light'));\r\n  };\r\n\r\n  return (\r\n    <TemaContext.Provider value={{ tema, toggleTema }}>\r\n      {children}\r\n    <\/TemaContext.Provider>\r\n  );\r\n};\r\n\r\n\/\/ 3. Context'i kullanan bir hook olu\u015ftur (opsiyonel ama \u00f6nerilen)\r\nexport const useTema = () => {\r\n  return useContext(TemaContext);\r\n};\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ Uygulama Dosyas\u0131 (\u00f6rne\u011fin App.js)\r\nimport React from 'react';\r\nimport { TemaProvider, useTema } from '.\/TemaContext'; \/\/ Provider ve hook'u import et\r\n\r\n\/\/ Tema de\u011fi\u015ftiren bir bile\u015fen\r\nfunction TemaButonu() {\r\n  const { tema, toggleTema } = useTema(); \/\/ useTema hook'unu kullanarak context'e eri\u015fim\r\n  return (\r\n    <button onClick={toggleTema}>\r\n      Temay\u0131 De\u011fi\u015ftir ({tema === 'light' ? 'Koyu Tema' : 'A\u00e7\u0131k Tema'})\r\n    <\/button>\r\n  );\r\n}\r\n\r\n\/\/ Temay\u0131 g\u00f6steren bir ba\u015fka bile\u015fen\r\nfunction TemaGosterici() {\r\n  const { tema } = useTema();\r\n  return (\r\n    <p style={{ color: tema === 'light' ? 'black' : 'white', background: tema === 'light' ? 'white' : 'black' }}>\r\n      Mevcut tema: <b>{tema}<\/b>\r\n    <\/p>\r\n  );\r\n}\r\n\r\n\/\/ Ana Uygulama bile\u015feni\r\nfunction App() {\r\n  return (\r\n    <TemaProvider>\r\n      <div style={{ padding: '20px', border: '1px solid gray' }}>\r\n        <h2>Context API \u00d6rne\u011fi<\/h2>\r\n        <TemaGosterici \/>\r\n        <TemaButonu \/>\r\n        <p>Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\" target=\"_blank\" rel=\"noopener noreferrer\">Fatih Soysal'\u0131n blogunu<\/a> inceleyebilirsiniz.<\/p>\r\n      <\/div>\r\n    <\/TemaProvider&#038;gt>\r\n  );\r\n}\r\n\r\nexport default App;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>TemaProvider<\/code> bile\u015fen a\u011fac\u0131n\u0131n \u00fcst seviyelerinde tan\u0131mlan\u0131r ve <code>tema<\/code> durumu ile <code>toggleTema<\/code> fonksiyonunu t\u00fcm alt bile\u015fenlerine sa\u011flar. <code>TemaButonu<\/code> ve <code>TemaGosterici<\/code> gibi herhangi bir alt bile\u015fen, <code>useTema<\/code> custom hook'u arac\u0131l\u0131\u011f\u0131yla bu de\u011ferlere eri\u015febilir, b\u00f6ylece prop'lar\u0131 her seviyeden ge\u00e7irme ihtiyac\u0131 ortadan kalkar.\n    <\/p>\n<p>\n        <b>Dikkat:<\/b> Context API global state y\u00f6netim \u00e7\u00f6z\u00fcmlerinin (Redux gibi) yerini almaz, ancak daha k\u00fc\u00e7\u00fck ve spesifik global durumlar i\u00e7in m\u00fckemmel bir \u00e7\u00f6z\u00fcmd\u00fcr. A\u015f\u0131r\u0131 kullan\u0131ld\u0131\u011f\u0131nda, uygulaman\u0131n performans\u0131n\u0131 olumsuz etkileyebilir \u00e7\u00fcnk\u00fc Context de\u011fi\u015fti\u011finde, onu t\u00fcketen t\u00fcm bile\u015fenler yeniden render edilir.\n    <\/p>\n<h3 id=\"ileri-duzey-uzmanlar-icin-performans-ve-yeniden-kullanilabilirlik-mucizesi\">\u0130leri D\u00fczey Uzmanlar \u0130\u00e7in: Performans ve Yeniden Kullan\u0131labilirlik Mucizesi<\/h3>\n<p>\n        React'te ger\u00e7ekten uzmanla\u015fmak, sadece temel pattern'lar\u0131 bilmekle kalmaz, ayn\u0131 zamanda karma\u015f\u0131k problemleri \u00e7\u00f6zmek, performans\u0131 optimize etmek ve kodunuzu maksimum d\u00fczeyde yeniden kullan\u0131labilir k\u0131lmak anlam\u0131na gelir. Bu b\u00f6l\u00fcm, en pop\u00fcler ve g\u00fc\u00e7l\u00fc ileri d\u00fczey React pattern'lar\u0131n\u0131 ke\u015ffedecek, her birini detayl\u0131 kod \u00f6rnekleri ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla a\u00e7\u0131klayaca\u011f\u0131z.\n    <\/p>\n<h4>1. Custom Hooks: Stateful Mant\u0131\u011f\u0131 Nas\u0131l Yeniden Kullan\u0131l\u0131r?<\/h4>\n<p>\n        Hooks, React 16.8 ile hayat\u0131m\u0131za girerek fonksiyonel bile\u015fenlerde state ve lifecycle \u00f6zelliklerini kullanmam\u0131z\u0131 sa\u011flad\u0131. Custom Hooks ise, bu g\u00fcc\u00fc bir ad\u0131m \u00f6teye ta\u015f\u0131yarak stateful mant\u0131\u011f\u0131 bile\u015fenler aras\u0131nda yeniden kullan\u0131labilir hale getirmemizi sa\u011flar. Tekrar eden i\u015f mant\u0131\u011f\u0131n\u0131 izole etmek ve bile\u015fenlerimizi daha temiz tutmak i\u00e7in m\u00fckemmel bir yoldur.\n    <\/p>\n<p>\n        <strong>Custom Hooks Nedir?<\/strong> \"use\" kelimesiyle ba\u015flayan, di\u011fer hook'lar\u0131 (useState, useEffect vb.) kullanan ve \u00f6zel bir mant\u0131k i\u00e7eren JavaScript fonksiyonlar\u0131d\u0131r.\n    <\/p>\n<pre><code>\r\n\/\/ Custom Hook \u00d6rne\u011fi: useToggle.js\r\nimport { useState } from 'react';\r\n\r\nfunction useToggle(initialValue = false) {\r\n  const [value, setValue] = useState(initialValue);\r\n\r\n  const toggle = () => {\r\n    setValue(currentValue => !currentValue);\r\n  };\r\n\r\n  return [value, toggle];\r\n}\r\n\r\nexport default useToggle;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ Custom Hook'u Kullanma \u00d6rne\u011fi: AyarPaneli.js\r\nimport React from 'react';\r\nimport useToggle from '.\/useToggle'; \/\/ Custom hook'umuzu import ediyoruz\r\n\r\nfunction AyarPaneli() {\r\n  const [darkModAcikMi, toggleDarkMod] = useToggle(false);\r\n  const [bildirimlerAcikMi, toggleBildirimler] = useToggle(true);\r\n\r\n  return (\r\n    <div style={{ padding: '20px', border: '1px solid #ccc', background: darkModAcikMi ? '#333' : '#fff', color: darkModAcikMi ? '#fff' : '#333' }}>\r\n      <h3>Ayarlar<\/h3>\r\n      <div>\r\n        <label>\r\n          <input type=\"checkbox\" checked={darkModAcikMi} onChange={toggleDarkMod} \/>\r\n          Koyu Modu Aktif Et\r\n        <\/label>\r\n      <\/div>\r\n      <div>\r\n        <label>\r\n          <input type=\"checkbox\" checked={bildirimlerAcikMi} onChange={toggleBildirimler} \/>\r\n          Bildirimleri A\u00e7\r\n        <\/label>\r\n      <\/div>\r\n      <p>Koyu Mod: {darkModAcikMi ? 'A\u00e7\u0131k' : 'Kapal\u0131'}<\/p>\r\n      <p>Bildirimler: {bildirimlerAcikMi ? 'A\u00e7\u0131k' : 'Kapal\u0131'}<\/p>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default AyarPaneli;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>useToggle<\/code> custom hook'u, herhangi bir boolean de\u011feri a\u00e7ma\/kapama mant\u0131\u011f\u0131n\u0131 soyutlar. Bu sayede, <code>AyarPaneli<\/code> bile\u015feni i\u00e7indeki mant\u0131k daha sade kal\u0131r ve <code>useToggle<\/code> hook'u farkl\u0131 bile\u015fenlerde tekrar kullan\u0131labilir.\n    <\/p>\n<h4>2. Render Props: Esnek Bile\u015fen Olu\u015fturma Sanat\u0131<\/h4>\n<p>\n        Render Props, bir bile\u015fenin ne render edece\u011fini, bir prop olarak ald\u0131\u011f\u0131 fonksiyona devretmesini sa\u011flayan bir tekniktir. Bu pattern, bile\u015fenler aras\u0131nda yeniden kullan\u0131labilir mant\u0131k payla\u015fmak i\u00e7in \u00e7ok g\u00fc\u00e7l\u00fc bir yol sunar, \u00f6zellikle UI bile\u015fenlerinin davran\u0131\u015f\u0131n\u0131 de\u011fi\u015ftirmeden sadece render \u00e7\u0131kt\u0131s\u0131n\u0131 \u00f6zelle\u015ftirmek istedi\u011finizde kullan\u0131\u015fl\u0131d\u0131r.\n    <\/p>\n<p>\n        <strong>Render Props Nedir?<\/strong> Ad\u0131ndan da anla\u015f\u0131laca\u011f\u0131 gibi, bir bile\u015fene prop olarak bir fonksiyon iletilir ve bu fonksiyon, bile\u015fenin render etmesi gereken i\u00e7eri\u011fi d\u00f6nd\u00fcr\u00fcr.\n    <\/p>\n<pre><code>\r\n\/\/ Render Props \u00d6rne\u011fi: MouseTakipci.js\r\nimport React, { useState } from 'react';\r\n\r\nfunction MouseTakipci(props) {\r\n  const [x, setX] = useState(0);\r\n  const [y, setY] = useState(0);\r\n\r\n  const handleMouseMove = (event) => {\r\n    setX(event.clientX);\r\n    setY(event.clientY);\r\n  };\r\n\r\n  return (\r\n    <div style={{ height: '200px', border: '1px dashed blue', position: 'relative' }} onMouseMove={handleMouseMove}>\r\n      {props.render({ x, y })} {\/* render prop'unu \u00e7a\u011f\u0131r\u0131yoruz *\/}\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default MouseTakipci;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ MouseTakipci bile\u015fenini kullanma \u00f6rne\u011fi: Uygulama.js\r\nimport React from 'react';\r\nimport MouseTakipci from '.\/MouseTakipci';\r\n\r\nfunction App() {\r\n  return (\r\n    <div>\r\n      <h2>Render Props \u00d6rne\u011fi<\/h2>\r\n      <p>A\u015fa\u011f\u0131daki kutu \u00fczerinde fareyi hareket ettirin:<\/p>\r\n      <MouseTakipci\r\n        render={({ x, y }) => (\r\n          <p style={{ position: 'absolute', top: y - 10, left: x + 10 }}>\r\n            Fare Konumu: ({x}, {y})\r\n          <\/p>\r\n        )}\r\n      \/>\r\n      <MouseTakipci\r\n        render={({ x, y }) => (\r\n          <img decoding=\"async\"\r\n            src=\"https:\/\/fatihsoysal.com\/wp-content\/uploads\/fatih-soysal-logo.png\"\r\n            alt=\"Fatih Soysal Logo\"\r\n            style={{\r\n              position: 'absolute',\r\n              left: x - 25,\r\n              top: y - 25,\r\n              width: '50px',\r\n              height: '50px',\r\n              pointerEvents: 'none'\r\n            }}\r\n          \/>\r\n        )}\r\n      \/>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default App;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        <code>MouseTakipci<\/code> bile\u015feni, sadece fare pozisyonu mant\u0131\u011f\u0131n\u0131 i\u00e7erir ve bu bilgiyi <code>render<\/code> prop'u arac\u0131l\u0131\u011f\u0131yla kendisine iletilen fonksiyona verir. Bu fonksiyon, fare pozisyonuna g\u00f6re ne render edilece\u011fine karar verir. B\u00f6ylece, <code>MouseTakipci<\/code>'nin mant\u0131\u011f\u0131 farkl\u0131 UI temsilleriyle tekrar kullan\u0131labilir hale gelir.\n    <\/p>\n<h4>3. Compound Components: \u0130li\u015fkili Bile\u015fen Gruplar\u0131n\u0131 Y\u00f6netme<\/h4>\n<p>\n        Compound Components (Bile\u015fik Bile\u015fenler) pattern'\u0131, bir grup bile\u015fenin birbiriyle etkile\u015fime girmesi gereken, ancak esnek bir \u015fekilde birlikte kullan\u0131labildi\u011fi senaryolar i\u00e7in idealdir. Select\/Option, Accordion\/Panel gibi bile\u015fen gruplar\u0131 bunun tipik \u00f6rnekleridir. Bu pattern, bile\u015fenlerin i\u00e7 state'ini ve mant\u0131\u011f\u0131n\u0131 ebeveyn bile\u015fende tutarak, \u00e7ocuk bile\u015fenlerin bu state'e eri\u015fmesini ve onu de\u011fi\u015ftirmesini sa\u011flar.\n    <\/p>\n<p>\n        <strong>Compound Components Nedir?<\/strong> Bu pattern, bir ebeveyn bile\u015feninin ve birka\u00e7 \u00e7ocuk bile\u015feninin belirli bir i\u015flevselli\u011fi sa\u011flamak i\u00e7in birlikte \u00e7al\u0131\u015ft\u0131\u011f\u0131 durumlarda kullan\u0131l\u0131r. Ebeveyn bile\u015fen, \u00e7ocuklar\u0131 aras\u0131nda \u00f6rt\u00fcl\u00fc bir \u015fekilde durum ve mant\u0131k payla\u015f\u0131r.\n    <\/p>\n<pre><code>\r\n\/\/ Compound Components \u00d6rne\u011fi: TabPanel.js\r\nimport React, { useState, createContext, useContext } from 'react';\r\n\r\n\/\/ 1. Context'leri olu\u015ftur\r\nconst TabContext = createContext();\r\n\r\n\/\/ 2. Ana Tab bile\u015feni (Provider g\u00f6revi g\u00f6r\u00fcr)\r\nfunction Tabs({ children }) {\r\n  const [activeTab, setActiveTab] = useState(0); \/\/ \u0130lk tab aktif\r\n  return (\r\n    <TabContext.Provider value={{ activeTab, setActiveTab }}>\r\n      <div>{children}<\/div>\r\n    <\/TabContext.Provider>\r\n  );\r\n}\r\n\r\n\/\/ 3. Tab Listesi bile\u015feni\r\nfunction TabList({ children }) {\r\n  return <div style={{ display: 'flex', borderBottom: '1px solid #ccc' }}>{children}<\/div>;\r\n}\r\n\r\n\/\/ 4. Tab D\u00fc\u011fmesi bile\u015feni\r\nfunction Tab({ index, children }) {\r\n  const { activeTab, setActiveTab } = useContext(TabContext);\r\n  const isActive = activeTab === index;\r\n  return (\r\n    <button\r\n      onClick={() => setActiveTab(index)}\r\n      style={{\r\n        padding: '10px 15px',\r\n        border: 'none',\r\n        background: 'none',\r\n        cursor: 'pointer',\r\n        fontWeight: isActive ? 'bold' : 'normal',\r\n        borderBottom: isActive ? '2px solid blue' : 'none',\r\n        color: isActive ? 'blue' : 'black'\r\n      }}\r\n    >\r\n      {children}\r\n    <\/button>\r\n  );\r\n}\r\n\r\n\/\/ 5. Tab Paneli bile\u015feni\r\nfunction TabPanel({ index, children }) {\r\n  const { activeTab } = useContext(TabContext);\r\n  return activeTab === index ? <div style={{ padding: '15px', border: '1px solid #eee', borderTop: 'none' }}>{children}<\/div> : null;\r\n}\r\n\r\n\/\/ Bile\u015fenleri d\u0131\u015fa aktar\r\nTabs.List = TabList;\r\nTabs.Tab = Tab;\r\nTabs.Panel = TabPanel;\r\n\r\nexport default Tabs;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ Compound Components'\u0131 Kullanma \u00d6rne\u011fi: Uygulama.js\r\nimport React from 'react';\r\nimport Tabs from '.\/TabPanel'; \/\/ Tabs bile\u015fenini import ediyoruz\r\n\r\nfunction App() {\r\n  return (\r\n    <div>\r\n      <h2>Compound Components \u00d6rne\u011fi<\/h2>\r\n      <Tabs>\r\n        <Tabs.List>\r\n          <Tabs.Tab index={0}>Hakk\u0131m\u0131zda<\/Tabs.Tab>\r\n          <Tabs.Tab index={1}>Hizmetlerimiz<\/Tabs.Tab>\r\n          <Tabs.Tab index={2}>\u0130leti\u015fim<\/Tabs.Tab>\r\n        <\/Tabs.List>\r\n        <Tabs.Panel index={0}>\r\n          <p>Bu \u015firket 2020 y\u0131l\u0131nda kurulmu\u015ftur.<\/p>\r\n        <\/Tabs.Panel>\r\n        <Tabs.Panel index={1}>\r\n          <p>Web geli\u015ftirme, mobil uygulama geli\u015ftirme ve dan\u0131\u015fmanl\u0131k hizmetleri sunuyoruz.<\/p>\r\n        <\/Tabs.Panel>\r\n        <Tabs.Panel index={2}>\r\n          <p>Bize <a href=\"mailto:info@fatihsoysal.com\">info@fatihsoysal.com<\/a> adresinden ula\u015fabilirsiniz.<\/p>\r\n        <\/Tabs.Panel>\r\n      <\/Tabs>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default App;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>Tabs<\/code> (ebeveyn) bile\u015feni, <code>activeTab<\/code> state'ini y\u00f6netir ve bunu <code>TabContext<\/code> arac\u0131l\u0131\u011f\u0131yla <code>Tabs.Tab<\/code> ve <code>Tabs.Panel<\/code> (\u00e7ocuk) bile\u015fenlerine sa\u011flar. \u00c7ocuk bile\u015fenler, bu context'i kullanarak hangi tab'\u0131n aktif oldu\u011funu bilir ve buna g\u00f6re render olur. Bu yap\u0131, geli\u015ftiricilere <code>Tabs<\/code> bile\u015fenini kullan\u0131rken b\u00fcy\u00fck esneklik sa\u011flar, \u00e7\u00fcnk\u00fc <code>Tabs.Tab<\/code> ve <code>Tabs.Panel<\/code> elemanlar\u0131n\u0131 istedikleri s\u0131rayla veya aralar\u0131na ba\u015fka HTML elemanlar\u0131 koyarak kullanabilirler, ancak yine de birbirleriyle senkronize \u00e7al\u0131\u015f\u0131rlar.\n    <\/p>\n<h4>4. Higher-Order Components (HOCs): Bile\u015fenleri Geli\u015ftirme<\/h4>\n<p>\n        Higher-Order Components (HOCs), bir React bile\u015fenini girdi olarak alan ve geli\u015fmi\u015f\/modifiye edilmi\u015f yeni bir bile\u015fen d\u00f6nd\u00fcren fonksiyonlard\u0131r. Bir HOC, stateful mant\u0131\u011f\u0131 veya prop'lar\u0131 payla\u015fmak, belirli bir bile\u015fene ek i\u015flevsellik katmak veya render ko\u015fullar\u0131n\u0131 y\u00f6netmek i\u00e7in kullan\u0131labilir. React Hooks \u00f6ncesinde yayg\u0131n olarak kullan\u0131lan bir pattern'd\u0131 ve hala baz\u0131 durumlarda ge\u00e7erlili\u011fini korumaktad\u0131r.\n    <\/p>\n<p>\n        <strong>HOC Nedir?<\/strong> Fonksiyonel programlamadaki Higher-Order Functions kavram\u0131na benzer \u015fekilde, bile\u015fenleri soyutlama ve yeniden kullan\u0131labilirlik sa\u011flamak i\u00e7in kullan\u0131l\u0131r.\n    <\/p>\n<pre><code>\r\n\/\/ HOC \u00d6rne\u011fi: withVeriYukleme.js\r\nimport React, { useState, useEffect } from 'react';\r\n\r\nfunction withVeriYukleme(WrappedComponent, fetchDataUrl) {\r\n  return function WithData(props) {\r\n    const [veri, setVeri] = useState(null);\r\n    const [yukleniyor, setYukleniyor] = useState(true);\r\n    const [hata, setHata] = useState(null);\r\n\r\n    useEffect(() => {\r\n      const fetchData = async () => {\r\n        try {\r\n          const response = await fetch(fetchDataUrl);\r\n          if (!response.ok) {\r\n            throw new Error(<code>HTTP Hata! Durum: ${response.status}<\/code>);\r\n          }\r\n          const result = await response.json();\r\n          setVeri(result);\r\n        } catch (error) {\r\n          setHata(error);\r\n        } finally {\r\n          setYukleniyor(false);\r\n        }\r\n      };\r\n\r\n      fetchData();\r\n    }, []); \/\/ fetchDataUrl de\u011fi\u015fti\u011finde yeniden veri \u00e7ekmek i\u00e7in buraya ekleyebilirsiniz\r\n\r\n    if (yukleniyor) {\r\n      return <div>Veriler y\u00fckleniyor...<\/div>;\r\n    }\r\n\r\n    if (hata) {\r\n      return <div style={{ color: 'red' }}>Hata: {hata.message}<\/div>;\r\n    }\r\n\r\n    return <WrappedComponent {...props} veri={veri} \/>;\r\n  };\r\n}\r\n\r\nexport default withVeriYukleme;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ HOC'u Kullanma \u00d6rne\u011fi: KullaniciListesi.js\r\nimport React from 'react';\r\nimport withVeriYukleme from '.\/withVeriYukleme';\r\n\r\n\/\/ Veriyi g\u00f6sterecek temel bile\u015fen\r\nfunction KullaniciListesi({ veri, title }) {\r\n  return (\r\n    <div>\r\n      <h3>{title}<\/h3>\r\n      <ul>\r\n        {veri && veri.map(kullanici => (\r\n          <li key={kullanici.id}>{kullanici.name} ({kullanici.email})<\/li>\r\n        ))}\r\n      <\/ul>\r\n    <\/div>\r\n  );\r\n}\r\n\r\n\/\/ HOC ile KullaniciListesi bile\u015fenini sarmala\r\nconst VeriliKullaniciListesi = withVeriYukleme(KullaniciListesi, 'https:\/\/jsonplaceholder.typicode.com\/users');\r\n\r\n\/\/ Ana Uygulama bile\u015feninde kullanma\r\nfunction App() {\r\n  return (\r\n    <div>\r\n      <h2>HOC \u00d6rne\u011fi<\/h2>\r\n      <VeriliKullaniciListesi title=\"Sistemdeki Kullan\u0131c\u0131lar\" \/>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default App;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>withVeriYukleme<\/code> bir HOC'tur. <code>KullaniciListesi<\/code> bile\u015fenini sarmalar ve ona bir <code>veri<\/code> prop'u enjekte eder. <code>withVeriYukleme<\/code> fonksiyonu, veriyi \u00e7ekme, y\u00fcklenme durumunu y\u00f6netme ve hata yakalama mant\u0131\u011f\u0131n\u0131 soyutlar. Bu sayede, <code>KullaniciListesi<\/code> bile\u015feni sadece veriyi g\u00f6sterme sorumlulu\u011funu ta\u015f\u0131r, veri \u00e7ekme mant\u0131\u011f\u0131yla u\u011fra\u015fmaz.\n    <\/p>\n<p>\n        <b>Dikkat:<\/b> HOC'lar g\u00fc\u00e7l\u00fc olsa da, prop \u00e7ak\u0131\u015fmalar\u0131, sar\u0131lm\u0131\u015f bile\u015fenlerin adlar\u0131n\u0131n kaybolmas\u0131 (React DevTools'ta debugging zorlu\u011fu) ve birden fazla HOC'un i\u00e7 i\u00e7e kullan\u0131lmas\u0131 durumunda olu\u015fan \"wrapper hell\" gibi dezavantajlar\u0131 olabilir. Bu dezavantajlar nedeniyle, \u00e7o\u011fu durumda Custom Hooks daha modern ve tercih edilen bir alternatiftir.\n    <\/p>\n<h4>5. Performans Optimizasyonu: React.memo, useCallback ve useMemo ile Nas\u0131l H\u0131z Kazan\u0131l\u0131r?<\/h4>\n<p>\n        B\u00fcy\u00fck ve karma\u015f\u0131k React uygulamalar\u0131nda performans darbo\u011fazlar\u0131 ya\u015fanmas\u0131 ka\u00e7\u0131n\u0131lmazd\u0131r. Gereksiz yere yeniden render edilen bile\u015fenler, uygulaman\u0131n yava\u015flamas\u0131na neden olabilir. React, bu sorunlar\u0131 gidermek i\u00e7in <code>React.memo<\/code>, <code>useCallback<\/code> ve <code>useMemo<\/code> gibi optimizasyon ara\u00e7lar\u0131 sunar.\n    <\/p>\n<ul>\n<li>\n            <strong><code>React.memo<\/code> (Sadece Fonksiyonel Bile\u015fenler \u0130\u00e7in):<\/strong> Bir bile\u015fenin prop'lar\u0131 de\u011fi\u015fmedi\u011fi s\u00fcrece yeniden render edilmesini engeller. Belle\u011fe alma (memoization) i\u015flemi yapar.<\/p>\n<pre><code>\r\nimport React from 'react';\r\n\r\n\/\/ Sadece prop'lar\u0131 de\u011fi\u015fti\u011finde yeniden render olacak bile\u015fen\r\nconst MemoizedList = React.memo(function MemoizedList({ items }) {\r\n  console.log('MemoizedList render edildi');\r\n  return (\r\n    <ul>\r\n      {items.map((item, index) => (\r\n        <li key={index}>{item}<\/li>\r\n      ))}\r\n    <\/ul>\r\n  );\r\n});\r\n\r\nexport default MemoizedList;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n                <code>MemoizedList<\/code> bile\u015feni, <code>React.memo<\/code> ile sar\u0131ld\u0131\u011f\u0131nda, <code>items<\/code> prop'u de\u011fi\u015fmedi\u011fi s\u00fcrece yeniden render edilmeyecektir. Bu, \u00f6zellikle s\u0131k g\u00fcncellenen \u00fcst bile\u015fenlerin alt\u0131ndaki statik listeler i\u00e7in b\u00fcy\u00fck performans art\u0131\u015f\u0131 sa\u011flar.\n            <\/p>\n<\/li>\n<li>\n            <strong><code>useCallback<\/code>:<\/strong> Fonksiyonlar\u0131 belle\u011fe almak (memoize etmek) i\u00e7in kullan\u0131l\u0131r. Bir fonksiyonu, ba\u011f\u0131ml\u0131l\u0131klar\u0131 de\u011fi\u015fmedi\u011fi s\u00fcrece yeniden olu\u015fturmaz. Bu, \u00f6zellikle child bile\u015fenlere prop olarak callback'ler iletti\u011finizde ve bu child bile\u015fenler <code>React.memo<\/code> ile optimize edildi\u011finde \u00f6nemlidir.<\/p>\n<pre><code>\r\nimport React, { useState, useCallback } from 'react';\r\n\r\nfunction ParentComponent() {\r\n  const [count, setCount] = useState(0);\r\n  const [text, setText] = useState('');\r\n\r\n  \/\/ Sadece count de\u011fi\u015fti\u011finde yeniden olu\u015fturulacak bir fonksiyon\r\n  const handleClick = useCallback(() => {\r\n    setCount(c => c + 1);\r\n  }, []); \/\/ Ba\u011f\u0131ml\u0131l\u0131k dizisi bo\u015f oldu\u011fu i\u00e7in sadece bir kez olu\u015fturulur\r\n\r\n  \/\/ Her render'da yeniden olu\u015fturulacak bir fonksiyon\r\n  const handleTextChange = (e) => {\r\n    setText(e.target.value);\r\n  };\r\n\r\n  return (\r\n    <div>\r\n      <p>Saya\u00e7: {count}<\/p>\r\n      <button onClick={handleClick}>Artt\u0131r<\/button>\r\n      <input type=\"text\" value={text} onChange={handleTextChange} \/>\r\n      <p>Giri\u015f: {text}<\/p>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default ParentComponent;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n                <code>handleClick<\/code> fonksiyonu <code>useCallback<\/code> ile sar\u0131ld\u0131\u011f\u0131 i\u00e7in, <code>ParentComponent<\/code> her render edildi\u011finde yeniden olu\u015fturulmaz. Bu, e\u011fer <code>handleClick<\/code> bir alt bile\u015fene prop olarak ge\u00e7irilseydi ve o alt bile\u015fen <code>React.memo<\/code> ile optimize edilmi\u015f olsayd\u0131, gereksiz yeniden render'lar\u0131 engellerdi.\n            <\/p>\n<\/li>\n<li>\n            <strong><code>useMemo<\/code>:<\/strong> Hesaplama maliyeti y\u00fcksek olan de\u011ferleri belle\u011fe almak i\u00e7in kullan\u0131l\u0131r. Ba\u011f\u0131ml\u0131l\u0131klar\u0131 de\u011fi\u015fmedi\u011fi s\u00fcrece, hesaplama sonucunu yeniden hesaplamaz, \u00f6nbelle\u011fe al\u0131nm\u0131\u015f de\u011feri d\u00f6nd\u00fcr\u00fcr.<\/p>\n<pre><code>\r\nimport React, { useState, useMemo } from 'react';\r\n\r\nfunction HesaplamaComponent() {\r\n  const [sayi1, setSayi1] = useState(0);\r\n  const [sayi2, setSayi2] = useState(0);\r\n\r\n  \/\/ Y\u00fcksek maliyetli bir hesaplama oldu\u011funu varsayal\u0131m\r\n  const toplam = useMemo(() => {\r\n    console.log('Toplama i\u015flemi yeniden yap\u0131ld\u0131!');\r\n    return sayi1 + sayi2;\r\n  }, [sayi1, sayi2]); \/\/ Sadece sayi1 veya sayi2 de\u011fi\u015fti\u011finde yeniden hesapla\r\n\r\n  return (\r\n    <div>\r\n      <input type=\"number\" value={sayi1} onChange={(e) => setSayi1(Number(e.target.value))} \/>\r\n      <input type=\"number\" value={sayi2} onChange={(e) => setSayi2(Number(e.target.value))} \/>\r\n      <p>Toplam: {toplam}<\/p>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default HesaplamaComponent;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n                <code>toplam<\/code> de\u011feri, <code>sayi1<\/code> veya <code>sayi2<\/code> de\u011fi\u015fmedi\u011fi s\u00fcrece yeniden hesaplanmaz. Bu, \u00f6zellikle karma\u015f\u0131k filtreleme, s\u0131ralama veya b\u00fcy\u00fck veri k\u00fcmeleri \u00fczerinde yap\u0131lan di\u011fer yo\u011fun hesaplamalar i\u00e7in performans a\u00e7\u0131s\u0131ndan kritik \u00f6neme sahiptir.\n            <\/p>\n<\/li>\n<\/ul>\n<p>\n        <i>Uzman \u0130pucu: Bu optimizasyon ara\u00e7lar\u0131n\u0131 dikkatli kullan\u0131n. Her zaman her yerde memoization yapmak, \u00e7o\u011fu zaman gereksiz yere karma\u015f\u0131kl\u0131k ve haf\u0131za t\u00fcketimi yarat\u0131r. Yaln\u0131zca performans darbo\u011fazlar\u0131n\u0131 tespit etti\u011finiz noktalarda uygulay\u0131n. Gereksiz kullan\u0131m, uygulaman\u0131z\u0131n daha yava\u015f \u00e7al\u0131\u015fmas\u0131na neden olabilir, \u00e7\u00fcnk\u00fc memoization'\u0131n da kendi i\u00e7inde bir maliyeti vard\u0131r.<\/i>\n    <\/p>\n<h4>6. Error Boundaries: Uygulaman\u0131z\u0131 Kilitlenmelerden Koruyun<\/h4>\n<p>\n        B\u00fcy\u00fck uygulamalarda, bir bile\u015fende olu\u015fan k\u00fc\u00e7\u00fck bir hata bile t\u00fcm uygulaman\u0131n \u00e7\u00f6kmesine neden olabilir. React'in Error Boundaries (Hata S\u0131n\u0131rlar\u0131) pattern'\u0131, bile\u015fen a\u011fac\u0131n\u0131n belirli bir b\u00f6l\u00fcm\u00fcndeki JavaScript hatalar\u0131n\u0131 yakalaman\u0131za, bu hatalar\u0131 g\u00fcnl\u00fc\u011fe kaydetmenize ve kullan\u0131c\u0131ya yedek bir UI g\u00f6stermenize olanak tan\u0131r.\n    <\/p>\n<p>\n        <strong>Error Boundaries Nedir?<\/strong> Bir React s\u0131n\u0131f bile\u015fenidir ve \u00e7ocuk bile\u015fen a\u011fac\u0131nda render s\u0131ras\u0131nda, ya\u015fam d\u00f6ng\u00fcs\u00fc y\u00f6ntemlerinde veya kurucularda olu\u015fan JavaScript hatalar\u0131n\u0131 yakalar. Fonksiyonel bile\u015fenler hata s\u0131n\u0131rlar\u0131 olamaz, ancak bir hata s\u0131n\u0131r\u0131 i\u00e7ine yerle\u015ftirilebilirler.\n    <\/p>\n<pre><code>\r\n\/\/ ErrorBoundary.js\r\nimport React from 'react';\r\n\r\nclass ErrorBoundary extends React.Component {\r\n  constructor(props) {\r\n    super(props);\r\n    this.state = { hasError: false, error: null, errorInfo: null };\r\n  }\r\n\r\n  static getDerivedStateFromError(error) {\r\n    \/\/ Bir hata olu\u015ftu\u011funda, bir sonraki render i\u00e7in state'i g\u00fcncelleyin\r\n    return { hasError: true, error: error };\r\n  }\r\n\r\n  componentDidCatch(error, errorInfo) {\r\n    \/\/ Hata bilgilerini bir hata raporlama servisine g\u00f6nderebilirsiniz\r\n    console.error(\"ErrorBoundary hatay\u0131 yakalad\u0131: \", error, errorInfo);\r\n    this.setState({ errorInfo: errorInfo });\r\n    \/\/ \u00d6rne\u011fin, Sentry gibi bir servise g\u00f6nderebilirsiniz:\r\n    \/\/ logErrorToMyService(error, errorInfo);\r\n  }\r\n\r\n  render() {\r\n    if (this.state.hasError) {\r\n      \/\/ Yedek UI'\u0131 render edebilirsiniz\r\n      return (\r\n        <div style={{ border: '1px solid red', padding: '20px', margin: '20px', backgroundColor: '#ffe6e6' }}>\r\n          <h2>Oops! Bir \u015feyler ters gitti.<\/h2>\r\n          <p>Uygulamam\u0131zda beklenmedik bir hata olu\u015ftu. L\u00fctfen daha sonra tekrar deneyin.<\/p>\r\n          {this.props.showDetails && this.state.error && (\r\n            <details>\r\n              <summary>Hata Detaylar\u0131<\/summary>\r\n              <pre>{this.state.error.toString()}<\/pre>\n<pre>{this.state.errorInfo.componentStack}<\/pre>\n<\/details>\n<p>          )}\n        <\/p><\/div>\n<p>      );<br \/>\n    }<\/p>\n<p>    return this.props.children;<br \/>\n  }<br \/>\n}<\/p>\n<p>export default ErrorBoundary;<br \/>\n            <\/code><\/p>\n<pre><code>\r\n\/\/ Hata \u00dcretme Bile\u015feni (\u00f6rne\u011fin HataVerenBilesen.js)\r\nimport React from 'react';\r\n\r\nfunction HataVerenBilesen({ shouldThrowError }) {\r\n  if (shouldThrowError) {\r\n    throw new Error('Bilerek bir hata olu\u015fturdum!');\r\n  }\r\n  return <p>Bu bile\u015fen hatas\u0131z \u00e7al\u0131\u015f\u0131yor.<\/p>;\r\n}\r\n\r\nexport default HataVerenBilesen;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/\/ Uygulama.js i\u00e7inde ErrorBoundary kullan\u0131m\u0131\r\nimport React, { useState } from 'react';\r\nimport ErrorBoundary from '.\/ErrorBoundary';\r\nimport HataVerenBilesen from '.\/HataVerenBilesen';\r\n\r\nfunction App() {\r\n  const [hataUret, setHataUret] = useState(false);\r\n\r\n  return (\r\n    <div>\r\n      <h2>Error Boundary \u00d6rne\u011fi<\/h2>\r\n      <button onClick={() => setHataUret(true)}>Hata Olu\u015ftur<\/button>\r\n      <p>A\u015fa\u011f\u0131daki bile\u015fen kendi hata s\u0131n\u0131r\u0131na sahip:<\/p>\r\n      <ErrorBoundary showDetails={true}>\r\n        <HataVerenBilesen shouldThrowError={hataUret} \/>\r\n      <\/ErrorBoundary>\r\n\r\n      <p>Bu k\u0131s\u0131m hata s\u0131n\u0131r\u0131n\u0131n d\u0131\u015f\u0131nda ve etkilenmez.<\/p>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default App;\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>HataVerenBilesen<\/code> kas\u0131tl\u0131 olarak bir hata f\u0131rlatt\u0131\u011f\u0131nda, <code>ErrorBoundary<\/code> bu hatay\u0131 yakalar ve kullan\u0131c\u0131ya ho\u015f bir yedek UI sunar, b\u00f6ylece uygulaman\u0131n geri kalan\u0131 \u00e7al\u0131\u015fmaya devam eder. Bu, kullan\u0131c\u0131 deneyimini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r ve \u00fcretim ortamlar\u0131nda uygulaman\u0131n daha sa\u011flam olmas\u0131n\u0131 sa\u011flar.\n    <\/p>\n<p>\n        <b>Dikkat:<\/b> Error Boundaries yaln\u0131zca render s\u0131ras\u0131nda olu\u015fan hatalar\u0131, ya\u015fam d\u00f6ng\u00fcs\u00fc y\u00f6ntemlerindeki hatalar\u0131 ve kuruculardaki hatalar\u0131 yakalar. Olay y\u00f6neticilerindeki (event handlers) hatalar\u0131, asenkron kodlardaki hatalar\u0131 (setTimeout veya requestAnimationFrame callback'leri) veya sunucu taraf\u0131nda olu\u015fan hatalar\u0131 yakalamaz. Bu t\u00fcr hatalar i\u00e7in <code>try-catch<\/code> bloklar\u0131 kullanmal\u0131s\u0131n\u0131z.\n    <\/p>\n<h3 id=\"mobil-uyumlu-react-tasarimi-media-query-ornekleri\">Mobil Uyumlu React Tasar\u0131m\u0131: Media Query \u00d6rnekleri<\/h3>\n<p>\n        G\u00fcn\u00fcm\u00fczde mobil cihazlardan eri\u015filen web sitelerinin oran\u0131 masa\u00fcst\u00fc cihazlar\u0131 geride b\u0131rakm\u0131\u015ft\u0131r. Bu nedenle, React uygulamalar\u0131n\u0131z\u0131n farkl\u0131 ekran boyutlar\u0131nda sorunsuz \u00e7al\u0131\u015fmas\u0131, yani responsiv (duyarl\u0131) olmas\u0131 hayati \u00f6nem ta\u015f\u0131r. React'in kendi ba\u015f\u0131na responsive tasar\u0131m i\u00e7in \u00f6zel bir pattern'\u0131 olmasa da, CSS ve JavaScript kullanarak bu yetene\u011fi bile\u015fenlerinize entegre edebilirsiniz. CSS media query'leri, responsive tasar\u0131m\u0131n temelini olu\u015fturur. \u0130\u015fte bir \u00f6rnek:\n    <\/p>\n<pre><code>\r\n\/\/ ResponsiveCard.js (CSS Mod\u00fclleri ile Mobil Uyumlu Tasar\u0131m)\r\nimport React from 'react';\r\nimport styles from '.\/ResponsiveCard.module.css'; \/\/ CSS Mod\u00fcllerini import ediyoruz\r\n\r\nfunction ResponsiveCard({ title, content }) {\r\n  return (\r\n    <div className={styles.card}>\r\n      <h3 className={styles.cardTitle}>{title}<\/h3>\r\n      <p className={styles.cardContent}>{content}<\/p>\r\n      <button className={styles.cardButton}>Daha Fazla<\/button>\r\n    <\/div>\r\n  );\r\n}\r\n\r\nexport default ResponsiveCard;\r\n            <\/pre>\n<p><\/code><\/p>\n<pre><code>\r\n\/* ResponsiveCard.module.css *\/\r\n.card {\r\n  width: 90%;\r\n  max-width: 400px;\r\n  margin: 20px auto;\r\n  padding: 20px;\r\n  border: 1px solid #ccc;\r\n  box-shadow: 0 2px 5px rgba(0,0,0,0.1);\r\n  text-align: center;\r\n  background-color: #f9f9f9;\r\n}\r\n\r\n.cardTitle {\r\n  color: #333;\r\n  font-size: 1.5em;\r\n  margin-bottom: 10px;\r\n}\r\n\r\n.cardContent {\r\n  color: #666;\r\n  font-size: 1em;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cardButton {\r\n  background-color: #007bff;\r\n  color: white;\r\n  padding: 10px 15px;\r\n  border: none;\r\n  border-radius: 5px;\r\n  cursor: pointer;\r\n  margin-top: 15px;\r\n}\r\n\r\n\/* Mobil cihazlar i\u00e7in stil tan\u0131mlamalar\u0131 (\u00f6rne\u011fin, 768px alt\u0131) *\/\r\n@media (max-width: 768px) {\r\n  .card {\r\n    width: 95%; \/* Daha dar ekranlarda daha fazla yer kapla *\/\r\n    padding: 15px;\r\n    margin: 10px auto;\r\n  }\r\n\r\n  .cardTitle {\r\n    font-size: 1.2em; \/* Mobil i\u00e7in daha k\u00fc\u00e7\u00fck ba\u015fl\u0131k *\/\r\n  }\r\n\r\n  .cardContent {\r\n    font-size: 0.9em; \/* Mobil i\u00e7in daha k\u00fc\u00e7\u00fck i\u00e7erik *\/\r\n  }\r\n\r\n  .cardButton {\r\n    padding: 8px 12px;\r\n    font-size: 0.9em;\r\n  }\r\n}\r\n\r\n\/* Daha k\u00fc\u00e7\u00fck mobil cihazlar i\u00e7in stil tan\u0131mlamalar\u0131 (\u00f6rne\u011fin, 480px alt\u0131) *\/\r\n@media (max-width: 480px) {\r\n  .card {\r\n    border-radius: 0; \/* K\u00f6\u015feleri yuvarlama *\/\r\n    box-shadow: none; \/* G\u00f6lgeyi kald\u0131r *\/\r\n  }\r\n  .cardButton {\r\n    width: 100%; \/* Mobil cihazlarda tam geni\u015flik *\/\r\n  }\r\n}\r\n            <\/pre>\n<p><\/code><\/p>\n<p>\n        Bu \u00f6rnekte, <code>ResponsiveCard<\/code> bile\u015fenimiz CSS Mod\u00fclleri kullanarak stilize edilmi\u015ftir. <code>ResponsiveCard.module.css<\/code> dosyas\u0131nda, standart stillere ek olarak <code>@media<\/code> kurallar\u0131 ile farkl\u0131 ekran boyutlar\u0131na g\u00f6re \u00f6zelle\u015ftirilmi\u015f stiller tan\u0131mlanm\u0131\u015ft\u0131r. Bu sayede, kart bile\u015feni mobil cihazlarda daha okunakl\u0131 ve kullan\u0131\u015fl\u0131 bir \u015fekilde g\u00f6r\u00fcnt\u00fclenir.\n    <\/p>\n<p>\n        <i>Uzman \u0130pucu: Responsive tasar\u0131mlar i\u00e7in sadece CSS Media Query'leri kullanmakla kalmay\u0131p, <code>react-responsive<\/code> gibi k\u00fct\u00fcphanelerle JavaScript \u00fczerinden de ekran boyutlar\u0131na g\u00f6re ko\u015fullu render yapabilirsiniz. Bu, \u00f6zellikle farkl\u0131 ekranlarda tamamen farkl\u0131 bile\u015fenler g\u00f6stermeniz gerekti\u011finde i\u015fe yarar.<\/i>\n    <\/p>\n<h2 id=\"performans-karsilastirmalari-ne-zaman-ne-kullanilmali\">Performans Kar\u015f\u0131la\u015ft\u0131rmalar\u0131: Ne Zaman Ne Kullan\u0131lmal\u0131?<\/h2>\n<p>\n        Farkl\u0131 React pattern'lar\u0131n\u0131n kendine \u00f6zg\u00fc kullan\u0131m alanlar\u0131 ve performans etkileri vard\u0131r. Bir pattern'\u0131 se\u00e7erken, sadece kodun okunabilirli\u011fi veya yeniden kullan\u0131labilirli\u011fi de\u011fil, ayn\u0131 zamanda uygulaman\u0131n genel performans\u0131 \u00fczerindeki etkisi de g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r. \u0130\u015fte baz\u0131 \u00f6nemli pattern'lar ve performans d\u00fc\u015f\u00fcnceleri:\n    <\/p>\n<table>\n<thead>\n<tr>\n<th>Pattern<\/th>\n<th>Temel Avantaj<\/th>\n<th>Performans Etkisi<\/th>\n<th>Ne Zaman Tercih Edilmeli?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Bile\u015fen Kompozisyonu<\/strong><\/td>\n<td>Mod\u00fclerlik, yeniden kullan\u0131labilirlik<\/td>\n<td>\u00c7ok d\u00fc\u015f\u00fck. Temel mekanizmad\u0131r.<\/td>\n<td>Her zaman. React'in felsefesinin temelidir.<\/td>\n<\/tr>\n<tr>\n<td><strong>Container\/Presenter<\/strong><\/td>\n<td>Sorumluluklar\u0131n ayr\u0131lmas\u0131, test edilebilirli\u011fi art\u0131rma<\/td>\n<td>D\u00fc\u015f\u00fck. Ekstra bir sarmalama katman\u0131 getirir.<\/td>\n<td>Karma\u015f\u0131k i\u015f mant\u0131\u011f\u0131 olan b\u00fcy\u00fck bile\u015fenler i\u00e7in.<\/td>\n<\/tr>\n<tr>\n<td><strong>Context API<\/strong><\/td>\n<td>Prop drilling'i \u00f6nleme, global state y\u00f6netimi<\/td>\n<td>Orta. Context de\u011fi\u015fti\u011finde t\u00fcm t\u00fcketiciler yeniden render olur. Gereksiz kullan\u0131m performans d\u00fc\u015f\u00fc\u015f\u00fcne yol a\u00e7abilir.<\/td>\n<td>Uygulama genelinde s\u0131k de\u011fi\u015fmeyen veya az say\u0131da t\u00fcketicisi olan veriler (tema, dil, kimlik do\u011frulama).<\/td>\n<\/tr>\n<tr>\n<td><strong>Custom Hooks<\/strong><\/td>\n<td>Stateful mant\u0131\u011f\u0131 yeniden kullanma, kod tekrar\u0131n\u0131 azaltma<\/td>\n<td>D\u00fc\u015f\u00fck. Fonksiyonel maliyeti minimaldir.<\/td>\n<td>Bile\u015fenler aras\u0131 benzer i\u015f mant\u0131\u011f\u0131 payla\u015fman\u0131z gerekti\u011finde. Modern React geli\u015ftirme i\u00e7in en \u00e7ok tercih edilen y\u00f6ntem.<\/td>\n<\/tr>\n<tr>\n<td><strong>Render Props<\/strong><\/td>\n<td>Dinamik UI render'\u0131, mant\u0131k payla\u015f\u0131m\u0131<\/td>\n<td>Orta. Fonksiyon prop olarak iletildi\u011fi i\u00e7in her render'da yeni bir fonksiyon olu\u015fur, bu da child bile\u015fenlerin gereksiz render olmas\u0131na neden olabilir (<code>React.memo<\/code> ile kullan\u0131lmad\u0131\u011f\u0131nda).<\/td>\n<td>UI'n\u0131n dinamik olarak de\u011fi\u015fti\u011fi ve mant\u0131k payla\u015f\u0131m\u0131n\u0131n esnek olmas\u0131 gereken durumlarda. Hooks \u00f6ncesi daha pop\u00fclerdi.<\/td>\n<\/tr>\n<tr>\n<td><strong>Higher-Order Components (HOCs)<\/strong><\/td>\n<td>Bile\u015fenlere ekstra \u00f6zellikler katma, mant\u0131k payla\u015f\u0131m\u0131<\/td>\n<td>Orta. Ekstra bir bile\u015fen sarmalama katman\u0131 olu\u015fturur. Prop \u00e7ak\u0131\u015fmalar\u0131 ve debug zorluklar\u0131 olabilir.<\/td>\n<td>Belirli bir \u00f6zelli\u011fi (\u00f6rn: yetkilendirme, veri y\u00fckleme) birden fazla bile\u015fene eklemeniz gerekti\u011finde. Hooks \u00f6ncesi yayg\u0131n olarak kullan\u0131l\u0131rd\u0131. Genellikle Custom Hooks ile de\u011fi\u015ftirilebilirler.<\/td>\n<\/tr>\n<tr>\n<td><strong><code>React.memo<\/code>, <code>useCallback<\/code>, <code>useMemo<\/code><\/strong><\/td>\n<td>Gereksiz yeniden render'lar\u0131 engelleme, hesaplama maliyetini d\u00fc\u015f\u00fcrme<\/td>\n<td>Y\u00fcksek performans kazanc\u0131 (do\u011fru kullan\u0131ld\u0131\u011f\u0131nda). Ancak her memoization'\u0131n da bir maliyeti vard\u0131r.<\/td>\n<td>Performans darbo\u011fazlar\u0131n\u0131 giderirken, maliyetli hesaplamalar veya s\u0131k s\u0131k yeniden render olan child bile\u015fenleri optimize ederken. Profiler ile tespit edilen alanlarda kullan\u0131lmal\u0131.<\/td>\n<\/tr>\n<tr>\n<td><strong>Error Boundaries<\/strong><\/td>\n<td>Uygulama kararl\u0131l\u0131\u011f\u0131, hatalara kar\u015f\u0131 diren\u00e7<\/td>\n<td>\u00c7ok d\u00fc\u015f\u00fck. Sadece hata an\u0131nda devreye girer.<\/td>\n<td>Uygulaman\u0131z\u0131n kritik b\u00f6l\u00fcmlerini hatalara kar\u015f\u0131 korumak i\u00e7in her zaman.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n        Performans optimizasyonlar\u0131 yaparken her zaman bir React profiler (\u00f6rne\u011fin React DevTools ile gelen) kullanmak \u00f6nemlidir. \"Premature optimization is the root of all evil\" (Erken optimizasyon t\u00fcm k\u00f6t\u00fcl\u00fcklerin k\u00f6k\u00fcd\u00fcr) ilkesini unutmay\u0131n. \u00d6nce uygulaman\u0131z\u0131 \u00e7al\u0131\u015f\u0131r hale getirin, sonra performans sorunlar\u0131 ya\u015fad\u0131\u011f\u0131n\u0131zda optimize edin.\n    <\/p>\n<h2 id=\"sonuc-react-uzmanligina-giden-yolculugunuz\">Sonu\u00e7: React Uzmanl\u0131\u011f\u0131na Giden Yolculu\u011funuz<\/h2>\n<p>\n        Bu kapsaml\u0131 makale boyunca, React ekosistemindeki en g\u00fc\u00e7l\u00fc ve yayg\u0131n tasar\u0131m kal\u0131plar\u0131n\u0131 derinlemesine inceledik. Basit bile\u015fen kompozisyonlar\u0131ndan ba\u015flayarak, veri ve i\u015f mant\u0131\u011f\u0131n\u0131 ay\u0131rma stratejilerine (Container\/Presenter), prop drilling sorununu \u00e7\u00f6zmeye (Context API), stateful mant\u0131\u011f\u0131 yeniden kullanmaya (Custom Hooks), esnek UI olu\u015fturmaya (Render Props), ili\u015fkili bile\u015fen gruplar\u0131n\u0131 y\u00f6netmeye (Compound Components), bile\u015fenlere ek \u00f6zellikler katmaya (HOCs) ve son olarak uygulaman\u0131z\u0131n performans\u0131n\u0131 ve sa\u011flaml\u0131\u011f\u0131n\u0131 art\u0131rmaya (<code>React.memo<\/code>, <code>useCallback<\/code>, <code>useMemo<\/code>, Error Boundaries) y\u00f6nelik \u00e7e\u015fitli yakla\u015f\u0131mlar\u0131 \u00f6\u011frendik.\n    <\/p>\n<p>\n        Her bir pattern, belirli bir problemi \u00e7\u00f6zmek i\u00e7in tasarlanm\u0131\u015ft\u0131r ve hangi senaryoda hangi pattern'\u0131 kullanaca\u011f\u0131n\u0131z\u0131 bilmek, sizi iyi bir React geli\u015ftiricisinden bir uzmana d\u00f6n\u00fc\u015ft\u00fcrecektir. Unutmay\u0131n, bu pattern'lar birer k\u0131lavuzdur, dogma de\u011fildir. Projenizin \u00f6zel ihtiya\u00e7lar\u0131na g\u00f6re bunlar\u0131 uyarlamak veya bazen farkl\u0131 yakla\u015f\u0131mlar denemek sizin elinizde. \u00d6nemli olan, arkas\u0131ndaki prensipleri anlamak ve temiz, \u00f6l\u00e7eklenebilir ve bak\u0131m\u0131 kolay kod yazma felsefesini benimsemektir.\n    <\/p>\n<p>\n        React s\u00fcrekli geli\u015fen bir teknolojidir ve yeni hook'lar veya \u00f6zellikler, eski pattern'lar\u0131n yerini alabilir veya onlar\u0131 geli\u015ftirebilir. Bu nedenle, \u00f6\u011frenmeye ve kendinizi g\u00fcncel tutmaya devam etmek b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. Bu makalede edindi\u011finiz bilgilerle, React projelerinizde daha bilin\u00e7li kararlar alacak ve daha sa\u011flam, performansl\u0131 uygulamalar geli\u015ftireceksiniz. Ba\u015far\u0131lar dileriz!\n    <\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular<\/h3>\n<ol>\n<li>\n            <strong>Custom Hooks ve HOCs aras\u0131ndaki temel fark nedir ve hangisi ne zaman tercih edilmeli?<\/strong><\/p>\n<p>\n                <strong>Fark:<\/strong> Custom Hooks, fonksiyonel bile\u015fenlerde stateful mant\u0131\u011f\u0131 yeniden kullanmak i\u00e7in kullan\u0131l\u0131r ve do\u011frudan React'in hook yap\u0131s\u0131na dayan\u0131r. HOCs ise bir bile\u015feni saran ve ona yeni prop'lar veya davran\u0131\u015flar ekleyen bir fonksiyondur. HOC'lar genellikle s\u0131n\u0131f bile\u015fenleri d\u00f6neminden kalma bir pattern'd\u0131r.\n            <\/p>\n<p>\n                <strong>Tercih:<\/strong> Modern React uygulamalar\u0131nda, stateful mant\u0131\u011f\u0131 ve yan etkileri payla\u015fmak i\u00e7in genellikle Custom Hooks tercih edilir. Daha az \"wrapper hell\" riski ta\u015f\u0131r, daha okunabilir ve fonksiyonel bile\u015fenlerin do\u011fas\u0131na daha uygundur. HOC'lar hala baz\u0131 eski kod tabanlar\u0131nda veya belirli cross-cutting concerns (\u00f6rne\u011fin yetkilendirme) i\u00e7in kullan\u0131labilir ancak yeni projelerde Custom Hooks daha esnek ve modern bir se\u00e7enektir.\n            <\/p>\n<\/li>\n<li>\n            <strong>Context API, Redux gibi global state y\u00f6netim k\u00fct\u00fcphanelerinin yerini alabilir mi?<\/strong><\/p>\n<p>\n                Hay\u0131r, Context API Redux gibi karma\u015f\u0131k global state y\u00f6netim k\u00fct\u00fcphanelerinin tam olarak yerini almaz. Context API, daha k\u00fc\u00e7\u00fck, daha basit ve uygulaman\u0131n belirli bir b\u00f6l\u00fcm\u00fcnde payla\u015f\u0131lan veriler (tema, dil ayarlar\u0131 gibi) i\u00e7in harikad\u0131r. Redux ise daha b\u00fcy\u00fck, karma\u015f\u0131k uygulamalarda tahmin edilebilir state y\u00f6netimi, zaman yolculu\u011fu hata ay\u0131klamas\u0131 ve merkezi state y\u00f6netimi gibi daha geli\u015fmi\u015f \u00f6zellikler sunar. Context API'nin a\u015f\u0131r\u0131 kullan\u0131m\u0131, performans sorunlar\u0131na yol a\u00e7abilir \u00e7\u00fcnk\u00fc bir Context de\u011feri de\u011fi\u015fti\u011finde, onu t\u00fcketen t\u00fcm bile\u015fenler yeniden render edilir. Karma\u015f\u0131k state de\u011fi\u015fiklikleri ve t\u00fcretilmi\u015f state'ler i\u00e7in Redux veya Recoil\/Jotai gibi k\u00fct\u00fcphaneler daha uygundur.\n            <\/p>\n<\/li>\n<li>\n            <strong><code>React.memo<\/code>, <code>useCallback<\/code> ve <code>useMemo<\/code> kullanmak her zaman performans\u0131 art\u0131r\u0131r m\u0131?<\/strong><\/p>\n<p>\n                Hay\u0131r, her zaman art\u0131rmaz. Bu optimizasyon ara\u00e7lar\u0131, gereksiz yeniden render'lar\u0131 ve pahal\u0131 hesaplamalar\u0131 \u00f6nlemek i\u00e7in kullan\u0131l\u0131r, ancak kendilerinin de bir maliyeti vard\u0131r (bellek kullan\u0131m\u0131 ve kontrol mekanizmas\u0131 i\u00e7in CPU zaman\u0131). K\u00fc\u00e7\u00fck ve basit bile\u015fenler veya az s\u0131kl\u0131kla g\u00fcncellenen de\u011ferler i\u00e7in bu hook'lar\u0131 kullanmak, \u00e7o\u011fu zaman gereksiz karma\u015f\u0131kl\u0131k yarat\u0131r ve hatta performans d\u00fc\u015f\u00fc\u015f\u00fcne neden olabilir. Yaln\u0131zca React DevTools Profiler gibi ara\u00e7larla performans darbo\u011fazlar\u0131 tespit edildi\u011finde ve bu optimizasyonlar\u0131n ger\u00e7ekten fayda sa\u011flayaca\u011f\u0131 anla\u015f\u0131ld\u0131\u011f\u0131nda kullan\u0131lmalar\u0131 \u00f6nerilir.\n            <\/p>\n<\/li>\n<li>\n            <strong>Error Boundaries neleri yakalar ve neleri yakalamaz?<\/strong><\/p>\n<p>\n                <strong>Yakalad\u0131\u011f\u0131 hatalar:<\/strong> Render s\u0131ras\u0131nda (<code>render<\/code> metodunda), ya\u015fam d\u00f6ng\u00fcs\u00fc y\u00f6ntemlerinde (<code>componentDidMount<\/code>, <code>componentDidUpdate<\/code> vb.) ve s\u0131n\u0131f bile\u015fenlerinin kurucular\u0131nda (<code>constructor<\/code>) olu\u015fan JavaScript hatalar\u0131.\n            <\/p>\n<p>\n                <strong>Yakalayamad\u0131\u011f\u0131 hatalar:<\/strong> Olay y\u00f6neticileri i\u00e7indeki hatalar (<code>onClick<\/code>, <code>onChange<\/code> gibi), asenkron kodlardaki hatalar (<code>setTimeout<\/code>, <code>requestAnimationFrame<\/code> callback'leri, <code>Promise<\/code>'ler), sunucu taraf\u0131nda olu\u015fan hatalar (SSR\/SSG), kendi i\u00e7indeki hatalar (bir Error Boundary kendisi render ederken bir hata f\u0131rlat\u0131rsa). Bu durumlar i\u00e7in manuel <code>try-catch<\/code> bloklar\u0131 veya di\u011fer hata y\u00f6netimi stratejileri kullan\u0131lmal\u0131d\u0131r.\n            <\/p>\n<\/li>\n<\/ol>\n<p>Daha fazla detay ve g\u00fcncel geli\u015ftirme ipu\u00e7lar\u0131 i\u00e7in <a href=\"https:\/\/fatihsoysal.com\" target=\"_blank\" rel=\"noopener noreferrer\">Fatih Soysal'\u0131n blogunu<\/a> ziyaret edebilirsiniz.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9\ud83e\ude9d React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-30322","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9<\/title>\n<meta name=\"description\" content=\"React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern&#039;lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. Haz\u0131r m\u0131s\u0131n\u0131z?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/\u2728-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-\ud83e\udde9\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9\" \/>\n<meta property=\"og:description\" content=\"React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern&#039;lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. Haz\u0131r m\u0131s\u0131n\u0131z?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/\u2728-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-\ud83e\udde9\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-26T14:04:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-26T14:58:34+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"18 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9\",\"datePublished\":\"2025-09-26T14:04:40+00:00\",\"dateModified\":\"2025-09-26T14:58:34+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/\"},\"wordCount\":4105,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/\",\"name\":\"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-09-26T14:04:40+00:00\",\"dateModified\":\"2025-09-26T14:58:34+00:00\",\"description\":\"React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern'lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. 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Haz\u0131r m\u0131s\u0131n\u0131z?","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/\u2728-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-\ud83e\udde9\/","og_locale":"tr_TR","og_type":"article","og_title":"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9","og_description":"React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern'lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. Haz\u0131r m\u0131s\u0131n\u0131z?","og_url":"https:\/\/fatihsoysal.com\/blog\/\u2728-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-\ud83e\udde9\/","og_site_name":"Kodlar\u0131n Gizemli D\u00fcnyas\u0131","article_published_time":"2025-09-26T14:04:40+00:00","article_modified_time":"2025-09-26T14:58:34+00:00","author":"Fatih Soysal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Fatih Soysal","Tahmini okuma s\u00fcresi":"18 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/#article","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/"},"author":{"name":"Fatih Soysal","@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"headline":"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9","datePublished":"2025-09-26T14:04:40+00:00","dateModified":"2025-09-26T14:58:34+00:00","mainEntityOfPage":{"@id":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/"},"wordCount":4105,"commentCount":0,"publisher":{"@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/fatihsoysal.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/","url":"https:\/\/fatihsoysal.com\/blog\/%e2%9c%a8-react-patterns-her-uzmanin-bilmesi-gereken-tasarim-kaliplari-%f0%9f%a7%a9\/","name":"\u2728 React Patterns: Her Uzman\u0131n Bilmesi Gereken Tasar\u0131m Kal\u0131plar\u0131 \ud83e\udde9","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/#website"},"datePublished":"2025-09-26T14:04:40+00:00","dateModified":"2025-09-26T14:58:34+00:00","description":"React projelerinizde kod kalabal\u0131\u011f\u0131ndan, karma\u015f\u0131kl\u0131ktan ve bak\u0131m zorluklar\u0131ndan s\u0131k\u0131ld\u0131n\u0131z m\u0131? \u0130\u015fte size modern React uygulamalar\u0131nda temiz, yeniden kullan\u0131labilir ve s\u00fcrd\u00fcr\u00fclebilir kod yazman\u0131n alt\u0131n anahtar\u0131: React tasar\u0131m kal\u0131plar\u0131 (patterns). Bu detayl\u0131 makalede, bir React geli\u015ftiricisi olarak yolculu\u011funuzda sizi yeni ba\u015flayan seviyesinden bir uzmana ta\u015f\u0131yacak, en temelden en ileri d\u00fczeye kadar React pattern'lar\u0131n\u0131 ad\u0131m ad\u0131m ke\u015ffedece\u011fiz. Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve somut kod \u00f6rnekleriyle, bu kal\u0131plar\u0131 ne zaman ve nas\u0131l kullanaca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenecek, b\u00f6ylece uygulaman\u0131z\u0131n performans\u0131n\u0131 ve y\u00f6netilebilirli\u011fini zirveye ta\u015f\u0131yabileceksiniz. 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