{"id":9068,"date":"2025-01-09T11:00:16","date_gmt":"2025-01-09T08:00:16","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/react-gelistiricilerinin-10-sik-yaptigi-hata-ve-nasil-onlenir\/"},"modified":"2025-01-09T11:00:16","modified_gmt":"2025-01-09T08:00:16","slug":"react-gelistiricilerinin-10-sik-yaptigi-hata-ve-nasil-onlenir","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/react-gelistiricilerinin-10-sik-yaptigi-hata-ve-nasil-onlenir\/","title":{"rendered":"React Geli\u015ftiricilerinin 10 S\u0131k Yapt\u0131\u011f\u0131 Hata ve Nas\u0131l \u00d6nlenir"},"content":{"rendered":"<p><body><\/p>\n<p>React Geli\u015ftiricilerinin 10 S\u0131k Yapt\u0131\u011f\u0131 Hata ve Nas\u0131l \u00d6nlenir<\/p>\n<p>Merhaba! Ben Fatih Soysal ve bug\u00fcn React geli\u015ftiricilerinin s\u0131kl\u0131kla d\u00fc\u015ft\u00fc\u011f\u00fc 10 yayg\u0131n hatay\u0131 ve bu hatalardan nas\u0131l ka\u00e7\u0131nabilece\u011finizi detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z.  Bu hatalar\u0131 anlamak ve \u00f6nlemek,  React projelerinizin performans\u0131n\u0131 art\u0131rman\u0131za, kodunuzun okunabilirli\u011fini iyile\u015ftirmenize ve daha az hata ile kar\u015f\u0131la\u015fman\u0131za yard\u0131mc\u0131 olacakt\u0131r.  Hadi ba\u015flayal\u0131m!<\/p>\n<h2>1. Gereksiz Yeniden Renderlar<\/h2>\n<p>React&#8217;in performans\u0131n\u0131n kalbi, bile\u015fenlerin sadece gerekti\u011finde yeniden renderlanmas\u0131d\u0131r.  Ancak, gereksiz yeniden renderlar performans sorunlar\u0131na yol a\u00e7abilir.  Bu sorunu \u00f6nlemek i\u00e7in <code>React.memo<\/code> ve <code>useMemo<\/code> hook&#8217;lar\u0131n\u0131 kullanarak bile\u015fenlerinizi optimize edebilirsiniz.  \u00d6rne\u011fin, bir bile\u015fenin props&#8217;lar\u0131 de\u011fi\u015fmedi\u011finde yeniden renderlanmas\u0131n\u0131 engellemek i\u00e7in <code>React.memo<\/code> kullanabilirsiniz:<\/p>\n<pre><code>\nconst MyComponent = React.memo((props) => {\n  \/\/ ... bile\u015fen kodu ...\n});\n<\/code><\/pre>\n<p>Ayr\u0131ca, pahal\u0131 hesaplamalar\u0131 <code>useMemo<\/code> ile \u00f6nbelle\u011fe alarak performans\u0131 art\u0131rabilirsiniz.  Bu sayede, ayn\u0131 girdiler i\u00e7in ayn\u0131 hesaplamalar tekrar tekrar yap\u0131lmam\u0131\u015f olur.<\/p>\n<h2>2. Yanl\u0131\u015f Durum Y\u00f6netimi<\/h2>\n<p>Durum y\u00f6netimi, React uygulamalar\u0131nda karma\u015f\u0131kla\u015fabilir.  B\u00fcy\u00fck uygulamalarda, global durum y\u00f6netimi \u00e7\u00f6z\u00fcmlerine ihtiya\u00e7 duyabilirsiniz. Context API, Redux veya Zustand gibi k\u00fct\u00fcphaneler, b\u00fcy\u00fck \u00f6l\u00e7ekli uygulamalar\u0131n\u0131zda karma\u015f\u0131k durum y\u00f6netimini basitle\u015ftirmeye yard\u0131mc\u0131 olur.  Uygun bir durum y\u00f6netimi stratejisi se\u00e7mek, kodunuzun d\u00fczenli ve s\u00fcrd\u00fcr\u00fclebilir olmas\u0131n\u0131 sa\u011flar.<\/p>\n<h2>3.  Key \u00d6zelli\u011finin Yanl\u0131\u015f Kullan\u0131m\u0131<\/h2>\n<p>Liste bile\u015fenleri render ederken, her \u00f6\u011fenin benzersiz bir <code>key<\/code> \u00f6zelli\u011fine sahip olmas\u0131 \u00f6nemlidir.  Bu, React&#8217;in \u00f6\u011feleri verimli bir \u015fekilde g\u00fcncellemesine yard\u0131mc\u0131 olur.  Yanl\u0131\u015f veya tekrar eden <code>key<\/code> de\u011ferleri, performans sorunlar\u0131na ve beklenmedik davran\u0131\u015flara yol a\u00e7abilir.  Her \u00f6\u011fenin benzersiz bir kimli\u011fi temsil eden bir <code>key<\/code> de\u011feri atamak \u00f6nemlidir.<\/p>\n<h2>4.  Async\/Await&#8217;in Yanl\u0131\u015f Kullan\u0131m\u0131<\/h2>\n<p>Asenkron i\u015flemler React uygulamalar\u0131nda yayg\u0131nd\u0131r.  <code>async\/await<\/code> s\u00f6zdizimi, asenkron kodun okunabilirli\u011fini b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131r\u0131r.  Ancak, <code>async\/await<\/code>&#8216;i yanl\u0131\u015f kullanmak, hata ay\u0131klamay\u0131 zorla\u015ft\u0131rabilir.  Hata y\u00f6netimini do\u011fru bir \u015fekilde uygulamak ve olas\u0131 hatalar\u0131 yakalamak \u00f6nemlidir.  <code>try...catch<\/code> bloklar\u0131 bu noktada b\u00fcy\u00fck fayda sa\u011flar.<\/p>\n<h2>5.  Performans Optimizasyonu \u0130hmal Etmek<\/h2>\n<p>Uygulaman\u0131z b\u00fcy\u00fcd\u00fck\u00e7e, performans optimizasyonuna dikkat etmek \u00e7ok \u00f6nemlidir.  Gereksiz yeniden renderlar\u0131 \u00f6nlemek, b\u00fcy\u00fck veri k\u00fcmelerini verimli bir \u015fekilde i\u015flemeyi \u00f6\u011frenmek, ve gereksiz hesaplamalardan ka\u00e7\u0131nmak uygulama h\u0131z\u0131n\u0131 art\u0131racakt\u0131r.  Performans analiz ara\u00e7lar\u0131n\u0131 kullanmak, performans darbo\u011fazlar\u0131n\u0131 bulman\u0131za yard\u0131mc\u0131 olabilir.<\/p>\n<h2>6.  Kod Okunabilirli\u011fine \u00d6nem Vermeme<\/h2>\n<p>Okunabilir kod yazmak, uzun vadede hem sizin hem de di\u011fer geli\u015ftiriciler i\u00e7in \u00e7ok daha faydal\u0131d\u0131r.  A\u00e7\u0131klay\u0131c\u0131 de\u011fi\u015fken isimleri kullan\u0131n, kodunuzu d\u00fczenli ve sade tutun, ve gereksiz karma\u015f\u0131kl\u0131ktan ka\u00e7\u0131n\u0131n.  \u0130yi organize edilmi\u015f bir kod yap\u0131s\u0131, hata ay\u0131klamay\u0131 ve bak\u0131m\u0131 kolayla\u015ft\u0131r\u0131r. Bu, <a href=\"https:\/\/fatihsoysal.com\">kendi web sitemde<\/a> de vurgulad\u0131\u011f\u0131m bir konudur.<\/p>\n<h2>7.  Test Etmemek<\/h2>\n<p>Yazd\u0131\u011f\u0131n\u0131z kodun do\u011fru \u00e7al\u0131\u015ft\u0131\u011f\u0131ndan emin olmak i\u00e7in test yazmak \u00e7ok \u00f6nemlidir.  Unit testleri, integration testleri ve end-to-end testleri kullanarak kodunuzun farkl\u0131 y\u00f6nlerini test edebilirsiniz.  Bu sayede, olas\u0131 hatalar\u0131 erken a\u015famada yakalayabilir ve sorunsuz bir uygulama geli\u015ftirebilirsiniz.<\/p>\n<h2>8.  Hata Y\u00f6netimi Eksikli\u011fi<\/h2>\n<p>Uygulaman\u0131zda hata olu\u015ftu\u011funda, kullan\u0131c\u0131lara bilgilendirici bir hata mesaj\u0131 g\u00f6stermek \u00f6nemlidir.  <code>try...catch<\/code> bloklar\u0131n\u0131 kullanarak hatalar\u0131 yakalayabilir ve kullan\u0131c\u0131 deneyimini olumsuz etkileyecek beklenmedik davran\u0131\u015flardan ka\u00e7\u0131nabilirsiniz.  Ayr\u0131ca, hatalar\u0131 g\u00fcnl\u00fck dosyalar\u0131na kaydederek sorunlar\u0131 daha sonra analiz edebilirsiniz. <\/p>\n<h2>9.  S\u0131n\u0131rs\u0131z Durum G\u00fcncellemeleri<\/h2>\n<p>Durum g\u00fcncellemelerini kontrol alt\u0131nda tutmak performans a\u00e7\u0131s\u0131ndan \u00f6nemlidir.  Gereksiz durum g\u00fcncellemelerinden ka\u00e7\u0131narak uygulaman\u0131n performans\u0131n\u0131 iyile\u015ftirebilirsiniz.  Durum g\u00fcncellemelerini optimize etmek i\u00e7in useReducer hook&#8217;unu veya di\u011fer durum y\u00f6netimi tekniklerini kullanabilirsiniz.<\/p>\n<h2>10.  En Son Teknolojileri \u0130zlememek<\/h2>\n<p>React ekosistemi s\u00fcrekli geli\u015fmektedir.  En son teknolojileri ve iyi uygulamalar\u0131 takip etmek, projelerinizde daha verimli ve modern yakla\u015f\u0131mlar kullanman\u0131za yard\u0131mc\u0131 olur.  Yeni \u00f6zellikler ve g\u00fcncellemeler hakk\u0131nda bilgi sahibi olmak, geli\u015ftirme s\u00fcrecinizi optimize eder.  Bu ama\u00e7la <a href=\"https:\/\/dev.to\/raajaryan\/10-common-mistakes-developers-make-in-react-and-how-to-avoid-them-dhd\">bu makaleyi<\/a> referans olarak kullanabilirsiniz.<\/p>\n<p>Umar\u0131m bu makale, React geli\u015ftirme s\u00fcrecindeki s\u0131k kar\u015f\u0131la\u015f\u0131lan hatalar\u0131 anlama ve bunlardan ka\u00e7\u0131nma konusunda size yard\u0131mc\u0131 olmu\u015ftur. Ba\u015far\u0131lar!<\/p>\n<p>#Etiketler: React, React hatalar\u0131, React geli\u015ftirme, JavaScript, programlama, web geli\u015ftirme, hata ay\u0131klama, performans optimizasyonu, durum y\u00f6netimi, async\/await, React.memo, useMemo, useReducer, Context API, Redux, Zustand, key \u00f6zelli\u011fi, hata y\u00f6netimi, test etme, kod okunabilirli\u011fi<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"React Geli\u015ftiricilerinin 10 S\u0131k Yapt\u0131\u011f\u0131 Hata ve Nas\u0131l \u00d6nlenir Merhaba! Ben Fatih Soysal ve bug\u00fcn React geli\u015ftiricilerinin s\u0131kl\u0131kla&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-9068","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>React Geli\u015ftiricilerinin 10 S\u0131k Yapt\u0131\u011f\u0131 Hata ve Nas\u0131l \u00d6nlenir<\/title>\n<meta name=\"description\" content=\"Merhaba! 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Ben Fatih Soysal ve bug\u00fcn React geli\u015ftiricilerinin s\u0131kl\u0131kla d\u00fc\u015ft\u00fc\u011f\u00fc 10 yayg\u0131n hatay\u0131 ve bu hatalardan nas\u0131l ka\u00e7\u0131nabilece\u011finizi detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z. Bu hatalar\u0131 anlamak ve \u00f6nlemek, React projelerinizin performans\u0131n\u0131 art\u0131rman\u0131za, kodunuzun okunabilirli\u011fini iyile\u015ftirmenize ve daha az hata ile kar\u015f\u0131la\u015fman\u0131za yard\u0131mc\u0131 olacakt\u0131r. Hadi ba\u015flayal\u0131m!","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\/react-gelistiricilerinin-10-sik-yaptigi-hata-ve-nasil-onlenir\/","og_locale":"tr_TR","og_type":"article","og_title":"React Geli\u015ftiricilerinin 10 S\u0131k Yapt\u0131\u011f\u0131 Hata ve Nas\u0131l \u00d6nlenir","og_description":"Merhaba! 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