{"id":31510,"date":"2025-10-10T19:41:25","date_gmt":"2025-10-10T16:41:25","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/?p=31510"},"modified":"2025-10-10T19:41:25","modified_gmt":"2025-10-10T16:41:25","slug":"gatsbyde-react-hooks-kullanimi-modern-web-gelistirmenin-gucu","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/gatsbyde-react-hooks-kullanimi-modern-web-gelistirmenin-gucu\/","title":{"rendered":"Gatsby&#8217;de React Hooks Kullan\u0131m\u0131: Modern Web Geli\u015ftirmenin G\u00fcc\u00fc"},"content":{"rendered":"<p><body><\/p>\n<h2>Gatsby&#8217;de React Hooks Kullan\u0131m\u0131: Modern Web Geli\u015ftirmenin G\u00fcc\u00fc<\/h2>\n<p>Web geli\u015ftirme d\u00fcnyas\u0131 s\u00fcrekli evriliyor ve bu evrimin en \u00f6nemli duraklar\u0131ndan biri \u015f\u00fcphesiz React Hooks ve Gatsby&#8217;nin birle\u015fimidir. React Hooks, fonksiyonel bile\u015fenlerde durum (state) ve ya\u015fam d\u00f6ng\u00fcs\u00fc (lifecycle) \u00f6zelliklerini kullanmam\u0131z\u0131 sa\u011flayarak, s\u0131n\u0131f (class) bile\u015fenlerinin getirdi\u011fi karma\u015f\u0131kl\u0131\u011f\u0131 ortadan kald\u0131rd\u0131. Gatsby ise React tabanl\u0131, GraphQL destekli, performans odakl\u0131 bir statik site olu\u015fturucu olarak modern web projelerinin vazge\u00e7ilmezi haline geldi. Bu makalede, React Hooks&#8217;un Gatsby projelerinde nas\u0131l entegre edildi\u011fini, veri y\u00f6netimi, performans optimizasyonu ve genel geli\u015ftirme deneyimi \u00fczerindeki etkilerini derinlemesine inceleyece\u011fiz. Amac\u0131m\u0131z, bu iki g\u00fc\u00e7l\u00fc teknolojinin sinerjisini anlamak ve projelerinizde en verimli \u015fekilde kullanman\u0131z i\u00e7in size kapsaml\u0131 bir rehber sunmakt\u0131r.<\/p>\n<h3>React Hooks&#8217;a Derin Bir Bak\u0131\u015f<\/h3>\n<p>React Hooks, React 16.8 ile tan\u0131t\u0131lan ve fonksiyonel bile\u015fenlere durum ve di\u011fer React \u00f6zelliklerini &#8220;ba\u011flaman\u0131n&#8221; bir yolunu sunan bir dizi fonksiyondur. Bu sayede, s\u0131n\u0131f bile\u015fenlerine ihtiya\u00e7 duymadan daha temiz, okunabilir ve yeniden kullan\u0131labilir kod yazabiliriz.<\/p>\n<h4>useState: Temel Durum Y\u00f6netimi<\/h4>\n<p><code>useState<\/code>, fonksiyonel bile\u015fenlerde durum tutmam\u0131z\u0131 sa\u011flayan en temel Hook&#8217;tur. Bir durum de\u011fi\u015fkeni ve bu de\u011fi\u015fkeni g\u00fcncelleyen bir fonksiyon d\u00f6nd\u00fcr\u00fcr.<\/p>\n<pre><code class=\"language-jsx\">import React, { useState } from 'react';\n\nfunction Counter() {\n  const [count, setCount] = useState(0);\n\n  return (\n    <div>\n      <p>Say\u0131: {count}<\/p>\n      <button onClick={() => setCount(count + 1)}>Artt\u0131r<\/button>\n    <\/div>\n  );\n}<\/code><\/pre>\n<p>Bu \u00f6rnekte, <code>count<\/code> ad\u0131nda bir durum de\u011fi\u015fkeni ve onu g\u00fcncelleyen <code>setCount<\/code> fonksiyonu tan\u0131mlanm\u0131\u015ft\u0131r. <code>useState(0)<\/code> ba\u015flang\u0131\u00e7 de\u011ferini <code>0<\/code> olarak ayarlar.<\/p>\n<h4>useEffect: Yan Etkilerin Y\u00f6netimi<\/h4>\n<p><code>useEffect<\/code>, veri \u00e7ekme, DOM manip\u00fclasyonu, olay dinleyicileri ayarlama gibi &#8220;yan etkileri&#8221; (side effects) fonksiyonel bile\u015fenlerde y\u00f6netmek i\u00e7in kullan\u0131l\u0131r. Bile\u015fenin her render&#8217;\u0131ndan sonra \u00e7al\u0131\u015f\u0131r, ancak ba\u011f\u0131ml\u0131l\u0131k dizisi (dependency array) ile bu davran\u0131\u015f\u0131 kontrol edebiliriz.<\/p>\n<pre><code class=\"language-jsx\">import React, { useState, useEffect } from 'react';\n\nfunction UserProfile({ userId }) {\n  const [user, setUser] = useState(null);\n  const [loading, setLoading] = useState(true);\n\n  useEffect(() => {\n    setLoading(true);\n    fetch(<code>https:\/\/api.example.com\/users\/${userId}<\/code>)\n      .then(response => response.json())\n      .then(data => {\n        setUser(data);\n        setLoading(false);\n      });\n\n    \/\/ Temizleme fonksiyonu (componentWillUnmount gibi)\n    return () => {\n      \/\/ \u00d6rne\u011fin, bir aboneli\u011fi iptal etme\n    };\n  }, [userId]); \/\/ userId de\u011fi\u015fti\u011finde yeniden \u00e7al\u0131\u015f\u0131r\n\n  if (loading) return <p>Y\u00fckleniyor...<\/p>;\n  if (!user) return <p>Kullan\u0131c\u0131 bulunamad\u0131.<\/p>;\n\n  return (\n    <div>\n      <h3>{user.name}<\/h3>\n      <p>Email: {user.email}<\/p>\n    <\/div>\n  );\n}<\/code><\/pre>\n<p>Ba\u011f\u0131ml\u0131l\u0131k dizisi bo\u015f b\u0131rak\u0131l\u0131rsa (<code>[]<\/code>), <code>useEffect<\/code> sadece bile\u015fenin ilk render&#8217;\u0131nda \u00e7al\u0131\u015f\u0131r (<code>componentDidMount<\/code> gibi). Hi\u00e7 verilmezse, her render&#8217;da \u00e7al\u0131\u015f\u0131r.<\/p>\n<h4>useContext: Global Durum Y\u00f6netimi<\/h4>\n<p><code>useContext<\/code>, React&#8217;in Context API&#8217;sini kullanarak, prop drilling&#8217;den ka\u00e7\u0131narak bile\u015fen a\u011fac\u0131nda derinle\u015fimli verilere eri\u015fim sa\u011flar. Tema ayarlar\u0131, kullan\u0131c\u0131 kimlik do\u011frulama bilgileri gibi global durumlar i\u00e7in idealdir.<\/p>\n<pre><code class=\"language-jsx\">import React, { useContext, useState, createContext } from 'react';\n\nconst ThemeContext = createContext(null);\n\nfunction ThemeProvider({ children }) {\n  const [theme, setTheme] = useState('light');\n  const toggleTheme = () => setTheme(prevTheme => (prevTheme === 'light' ? 'dark' : 'light'));\n\n  return (\n    <ThemeContext.Provider value={{ theme, toggleTheme }}>\n      {children}\n    <\/ThemeContext.Provider>\n  );\n}\n\nfunction ThemeToggler() {\n  const { theme, toggleTheme } = useContext(ThemeContext);\n  return (\n    <button onClick={toggleTheme}>\n      Temay\u0131 De\u011fi\u015ftir ({theme === 'light' ? 'Koyu' : 'A\u00e7\u0131k'})\n    <\/button>\n  );\n}\n\nfunction App() {\n  return (\n    <ThemeProvider>\n      <ThemeToggler \/>\n      <Content \/>\n    <\/ThemeProvider>\n  );\n}<\/code><\/pre>\n<h4>useReducer: Karma\u015f\u0131k Durum Mant\u0131\u011f\u0131 \u0130\u00e7in<\/h4>\n<p><code>useState<\/code>&#8216;in daha karma\u015f\u0131k bir alternatifi olan <code>useReducer<\/code>, \u00f6zellikle bir durumun birden fazla alt de\u011fere sahip oldu\u011fu veya bir sonraki durumun \u00f6nceki duruma ba\u011fl\u0131 oldu\u011fu durumlarda tercih edilir. Redux benzeri bir desen sunar.<\/p>\n<pre><code class=\"language-jsx\">import React, { useReducer } from 'react';\n\nconst initialState = { count: 0 };\n\nfunction reducer(state, action) {\n  switch (action.type) {\n    case 'increment':\n      return { count: state.count + 1 };\n    case 'decrement':\n      return { count: state.count - 1 };\n    case 'reset':\n      return initialState;\n    default:\n      throw new Error();\n  }\n}\n\nfunction CounterWithReducer() {\n  const [state, dispatch] = useReducer(reducer, initialState);\n  return (\n    <>\n      Say\u0131: {state.count}\n      <button onClick={() => dispatch({ type: 'increment' })}>+<\/button>\n      <button onClick={() => dispatch({ type: 'decrement' })}>-<\/button>\n      <button onClick={() => dispatch({ type: 'reset' })}>Reset<\/button>\n    <\/>\n  );\n}<\/code><\/pre>\n<h4>useCallback ve useMemo: Performans Optimizasyonlar\u0131<\/h4>\n<p>Bu Hook&#8217;lar, gereksiz yeniden render&#8217;lar\u0131 \u00f6nleyerek performans\u0131 art\u0131rmak i\u00e7in kullan\u0131l\u0131r.<br \/>\n*   <code>useCallback<\/code>: Bir fonksiyonu \u00f6nbelle\u011fe al\u0131r ve ba\u011f\u0131ml\u0131l\u0131klar\u0131 de\u011fi\u015fmedi\u011fi s\u00fcrece ayn\u0131 fonksiyon referans\u0131n\u0131 d\u00f6nd\u00fcr\u00fcr. Bu, \u00f6zellikle prop olarak alt bile\u015fenlere ge\u00e7irilen callback&#8217;ler i\u00e7in \u00f6nemlidir.<br \/>\n*   <code>useMemo<\/code>: Hesaplamal\u0131 bir de\u011feri \u00f6nbelle\u011fe al\u0131r ve ba\u011f\u0131ml\u0131l\u0131klar\u0131 de\u011fi\u015fmedi\u011fi s\u00fcrece ayn\u0131 de\u011feri d\u00f6nd\u00fcr\u00fcr. Yo\u011fun hesaplamalar i\u00e7eren durumlarda faydal\u0131d\u0131r.<\/p>\n<pre><code class=\"language-jsx\">import React, { useState, useMemo, useCallback } from 'react';\n\nfunction ExpensiveCalculation({ num }) {\n  const calculatedValue = useMemo(() => {\n    console.log('Hesaplama yap\u0131l\u0131yor...');\n    let result = 0;\n    for (let i = 0; i < 100000000; i++) {\n      result += num;\n    }\n    return result;\n  }, [num]); \/\/ num de\u011fi\u015fti\u011finde yeniden hesapla\n\n  return <p>Hesaplanm\u0131\u015f De\u011fer: {calculatedValue}<\/p>;\n}\n\nfunction ParentComponent() {\n  const [count, setCount] = useState(0);\n  const [anotherCount, setAnotherCount] = useState(0);\n\n  const handleClick = useCallback(() => {\n    console.log('Butona t\u0131kland\u0131!');\n    setCount(prev => prev + 1);\n  }, []); \/\/ Ba\u011f\u0131ml\u0131l\u0131k yok, bu y\u00fczden handleClick referans\u0131 hi\u00e7 de\u011fi\u015fmez.\n\n  return (\n    <div>\n      <p>Count: {count}<\/p>\n      <p>Another Count: {anotherCount}<\/p>\n      <button onClick={handleClick}>Sayac\u0131 Artt\u0131r (useCallback)<\/button>\n      <button onClick={() => setAnotherCount(prev => prev + 1)}>Ba\u015fka Sayac\u0131 Artt\u0131r<\/button>\n      <ExpensiveCalculation num={count} \/>\n    <\/div>\n  );\n}<\/code><\/pre>\n<h4>useRef: DOM Elemanlar\u0131na veya Render&#8217;lar Aras\u0131 De\u011fi\u015fmeyen De\u011ferlere Referans<\/h4>\n<p><code>useRef<\/code>, bir DOM eleman\u0131na do\u011frudan eri\u015fmek veya bile\u015fenin render&#8217;lar\u0131 aras\u0131nda de\u011fi\u015fmeyen bir de\u011feri tutmak i\u00e7in kullan\u0131l\u0131r. De\u011feri g\u00fcncellendi\u011finde bile\u015fenin yeniden render olmas\u0131na neden olmaz.<\/p>\n<pre><code class=\"language-jsx\">import React, { useRef } from 'react';\n\nfunction TextInputWithFocusButton() {\n  const inputEl = useRef(null);\n  const onButtonClick = () => {\n    \/\/ <code>current<\/code> ile input eleman\u0131na eri\u015filebilir\n    inputEl.current.focus();\n  };\n  return (\n    <>\n      <input ref={inputEl} type=\"text\" \/>\n      <button onClick={onButtonClick}>Input'a Odaklan<\/button>\n    <\/>\n  );\n}<\/code><\/pre>\n<h4>Custom Hooks: Tekrar Kullan\u0131labilir Mant\u0131k Olu\u015fturma<\/h4>\n<p>Custom Hooks, birden fazla bile\u015fen aras\u0131nda durumlu mant\u0131\u011f\u0131 yeniden kullanmam\u0131z\u0131 sa\u011flayan fonksiyonlard\u0131r. <code>use<\/code> ile ba\u015flayan herhangi bir JavaScript fonksiyonu bir Custom Hook olabilir. Bu, DRY (Don&#8217;t Repeat Yourself) prensibini uygulamak i\u00e7in harika bir yoldur.<\/p>\n<pre><code class=\"language-jsx\">\/\/ useWindowSize.js\nimport { useState, useEffect } from 'react';\n\nfunction useWindowSize() {\n  const [windowSize, setWindowSize] = useState({\n    width: undefined,\n    height: undefined,\n  });\n\n  useEffect(() => {\n    function handleResize() {\n      setWindowSize({\n        width: window.innerWidth,\n        height: window.innerHeight,\n      });\n    }\n\n    window.addEventListener('resize', handleResize);\n    handleResize(); \/\/ \u0130lk y\u00fcklemede boyutu ayarla\n\n    return () => window.removeEventListener('resize', handleResize);\n  }, []); \/\/ Sadece ilk y\u00fcklemede \u00e7al\u0131\u015f\u0131r\n\n  return windowSize;\n}\n\nexport default useWindowSize;\n\n\/\/ MyComponent.js\nimport React from 'react';\nimport useWindowSize from '.\/useWindowSize';\n\nfunction MyComponent() {\n  const { width, height } = useWindowSize();\n  return (\n    <div>\n      Pencere Boyutu: {width}x{height}\n    <\/div>\n  );\n}<\/code><\/pre>\n<h3>Gatsby&#8217;nin Temelleri ve React \u0130li\u015fkisi<\/h3>\n<p>Gatsby, modern web geli\u015ftirmenin en pop\u00fcler ara\u00e7lar\u0131ndan biridir. React, GraphQL ve Webpack gibi teknolojileri bir araya getirerek h\u0131zl\u0131, g\u00fcvenli ve \u00f6l\u00e7eklenebilir statik siteler olu\u015fturman\u0131z\u0131 sa\u011flar.<\/p>\n<h4>Gatsby Nas\u0131l \u00c7al\u0131\u015f\u0131r? Build Time vs. Runtime<\/h4>\n<p>Gatsby, &#8220;build time&#8221; s\u0131ras\u0131nda t\u00fcm sayfalar\u0131 ve verileri \u00f6nceden olu\u015fturur. Bu, kullan\u0131c\u0131n\u0131n taray\u0131c\u0131s\u0131na sadece statik HTML, CSS ve JavaScript dosyalar\u0131n\u0131n g\u00f6nderilmesi anlam\u0131na gelir. Bu yakla\u015f\u0131m, sayfa y\u00fckleme s\u00fcrelerini \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r ve SEO performans\u0131n\u0131 art\u0131r\u0131r. Site taray\u0131c\u0131da y\u00fcklendikten sonra, React uygulamas\u0131 &#8220;hydrate&#8221; olur ve dinamik etkile\u015fimler i\u00e7in devreye girer. Hooks, bu &#8220;runtime&#8221; a\u015famas\u0131nda React bile\u015fenlerinin dinamik davran\u0131\u015flar\u0131n\u0131 y\u00f6netmek i\u00e7in kullan\u0131l\u0131r.<\/p>\n<h4>Gatsby&#8217;de React Bile\u015fenleri<\/h4>\n<p>Gatsby&#8217;de temel olarak iki t\u00fcr React bile\u015feni vard\u0131r:<br \/>\n*   <strong>Sayfa Bile\u015fenleri (<code>src\/pages<\/code>):<\/strong> Bu dizindeki her JavaScript dosyas\u0131, otomatik olarak bir web sayfas\u0131 haline gelir. \u00d6rne\u011fin, <code>src\/pages\/about.js<\/code>, <code>\/about<\/code> URL&#8217;sine kar\u015f\u0131l\u0131k gelir.<br \/>\n*   <strong>Bile\u015fenler (<code>src\/components<\/code>):<\/strong> Bunlar, sayfa bile\u015fenleri i\u00e7inde veya ba\u015fka bile\u015fenler i\u00e7inde yeniden kullan\u0131labilen genel React bile\u015fenleridir (Header, Footer, Card vb.).<\/p>\n<h4>GraphQL ile Veri Katman\u0131<\/h4>\n<p>Gatsby&#8217;nin en g\u00fc\u00e7l\u00fc yanlar\u0131ndan biri, dahili GraphQL veri katman\u0131d\u0131r. Build time s\u0131ras\u0131nda, Gatsby sitenizdeki t\u00fcm verileri (Markdown dosyalar\u0131, API&#8217;ler, CMS&#8217;ler, resimler vb.) bir GraphQL \u015femas\u0131na d\u00f6n\u00fc\u015ft\u00fcr\u00fcr. Bu, bile\u015fenlerinizden bu verilere tutarl\u0131 ve tip g\u00fcvenli bir \u015fekilde eri\u015fmenizi sa\u011flar.<\/p>\n<h3>Gatsby&#8217;de Veri Y\u00f6netimi ve Hooks<\/h3>\n<p>Gatsby&#8217;nin GraphQL veri katman\u0131 ile React Hooks&#8217;u birle\u015ftirmek, veri \u00e7ekme ve y\u00f6netme s\u00fcrecini son derece modern ve verimli hale getirir.<\/p>\n<h4>useStaticQuery: Build Time&#8217;da Veri \u00c7ekme<\/h4>\n<p><code>useStaticQuery<\/code> Hook&#8217;u, Gatsby 2.1&#8217;den itibaren sunulan ve sayfa d\u0131\u015f\u0131 bile\u015fenlerde (yani <code>src\/pages<\/code> dizininde olmayan bile\u015fenlerde) build time s\u0131ras\u0131nda veri \u00e7ekmek i\u00e7in kullan\u0131lan g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r. Daha \u00f6nce bu t\u00fcr bile\u015fenlerde veri \u00e7ekmek i\u00e7in <code>StaticQuery<\/code> bile\u015fenini kullanmak gerekiyordu, bu da render prop deseni nedeniyle daha fazla sarmalay\u0131c\u0131 bile\u015fen anlam\u0131na geliyordu. <code>useStaticQuery<\/code> bu s\u00fcreci \u00e7ok daha sadele\u015ftirir.<\/p>\n<pre><code class=\"language-jsx\">import React from 'react';\nimport { useStaticQuery, graphql } from 'gatsby';\n\nfunction SiteInfo() {\n  const data = useStaticQuery(graphql<code>\n    query SiteTitleQuery {\n      site {\n        siteMetadata {\n          title\n          description\n        }\n      }\n    }\n  <\/code>);\n\n  return (\n    <header>\n      \n      <p>{data.site.siteMetadata.description}<\/p>\n    <\/header>\n  );\n}<\/code><\/pre>\n<p><strong>\u00d6nemli Notlar:<\/strong><br \/>\n*   <code>useStaticQuery<\/code> Hook&#8217;u sadece bir kez kullan\u0131labilir ve dinamik sorgular\u0131 desteklemez. Yani sorgu i\u00e7inde de\u011fi\u015fken kullanamazs\u0131n\u0131z.<br \/>\n*   Sorgu, build time&#8217;da \u00e7al\u0131\u015f\u0131r ve sonu\u00e7lar\u0131 bile\u015feninize statik olarak enjekte eder.<\/p>\n<h4>Sayfa Sorgular\u0131 (Page Queries)<\/h4>\n<p>Sayfa bile\u015fenlerinde (<code>src\/pages<\/code> alt\u0131ndaki dosyalar), <code>useStaticQuery<\/code>&#8216;den farkl\u0131 olarak, do\u011frudan bile\u015fenin alt\u0131nda <code>export const query = graphql<\/code> yap\u0131s\u0131n\u0131 kullanarak GraphQL sorgular\u0131 tan\u0131mlayabiliriz. Bu sorgular\u0131n sonu\u00e7lar\u0131 bile\u015fene <code>data<\/code> prop&#8217;u olarak ge\u00e7er. Bu sorgular, dinamik de\u011fi\u015fkenler (\u00f6rne\u011fin, bir blog yaz\u0131s\u0131n\u0131n slug&#8217;\u0131) alabilir.<\/p>\n<pre><code class=\"language-jsx\">\/\/ src\/pages\/blog\/{GatsbyMdx.slug}.js (Dinamik sayfa olu\u015fturma \u00f6rne\u011fi)\nimport React from 'react';\nimport { graphql } from 'gatsby';\n\nfunction BlogPost({ data }) {\n  const post = data.mdx;\n  return (\n    <div>\n      \n      <p>{post.frontmatter.date}<\/p>\n      <div dangerouslySetInnerHTML={{ __html: post.body }} \/> {\/<em> Mdx i\u00e7eri\u011fi <\/em>\/}\n    <\/div>\n  );\n}\n\nexport const query = graphql<code>\n  query BlogPostBySlug($id: String!) {\n    mdx(id: { eq: $id }) {\n      frontmatter {\n        title\n        date(formatString: \"MMMM DD, YYYY\")\n      }\n      body\n    }\n  }\n<\/code>;\n\nexport default BlogPost;<\/code><\/pre>\n<p>Bu \u00f6rnekte, <code>$id<\/code> de\u011fi\u015fkeni Gatsby&#8217;nin <code>gatsby-node.js<\/code> dosyas\u0131nda <code>createPages<\/code> API&#8217;si ile dinamik olarak sa\u011flan\u0131r.<\/p>\n<h4>Runtime&#8217;da Veri \u00c7ekme: useEffect ile Client-side Rendering (CSR)<\/h4>\n<p>Gatsby genellikle build time&#8217;da veri \u00e7ekse de, baz\u0131 durumlarda (\u00f6rne\u011fin, kullan\u0131c\u0131ya \u00f6zel i\u00e7erik, dinamik yorumlar, ger\u00e7ek zamanl\u0131 veriler) &#8220;client-side&#8221; (taray\u0131c\u0131 taraf\u0131nda) veri \u00e7ekmek gerekebilir. \u0130\u015fte burada <code>useEffect<\/code> devreye girer.<\/p>\n<pre><code class=\"language-jsx\">import React, { useState, useEffect } from 'react';\n\nfunction CommentsSection({ postId }) {\n  const [comments, setComments] = useState([]);\n  const [loading, setLoading] = useState(true);\n\n  useEffect(() => {\n    setLoading(true);\n    fetch(<code>https:\/\/api.example.com\/posts\/${postId}\/comments<\/code>)\n      .then(res => res.json())\n      .then(data => {\n        setComments(data);\n        setLoading(false);\n      })\n      .catch(error => {\n        console.error(\"Yorumlar y\u00fcklenirken hata olu\u015ftu:\", error);\n        setLoading(false);\n      });\n  }, [postId]); \/\/ postId de\u011fi\u015fti\u011finde yorumlar\u0131 yeniden y\u00fckle\n\n  if (loading) return <p>Yorumlar y\u00fckleniyor...<\/p>;\n  if (comments.length === 0) return <p>Hen\u00fcz yorum yok.<\/p>;\n\n  return (\n    <div>\n      <h3>Yorumlar<\/h3>\n      {comments.map(comment => (\n        <div key={comment.id}>\n          <h4>{comment.author}<\/h4>\n          <p>{comment.text}<\/p>\n        <\/div>\n      ))}\n    <\/div>\n  );\n}<\/code><\/pre>\n<p>Bu yakla\u015f\u0131m, Gatsby&#8217;nin statik yap\u0131s\u0131n\u0131 korurken, gerekti\u011finde dinamik i\u00e7erik eklemenizi sa\u011flar.<\/p>\n<h3>Gatsby ve Performans Optimizasyonunda Hooks&#8217;un Rol\u00fc<\/h3>\n<p>Gatsby zaten performans konusunda olduk\u00e7a ba\u015far\u0131l\u0131d\u0131r, ancak React Hooks ile bu performans\u0131 daha da ileriye ta\u015f\u0131yabiliriz.<\/p>\n<h4>useMemo ve useCallback ile Gereksiz Render&#8217;lar\u0131 Engelleme<\/h4>\n<p>Daha \u00f6nce de bahsetti\u011fimiz gibi, <code>useMemo<\/code> ve <code>useCallback<\/code> Hook&#8217;lar\u0131, \u00f6zellikle karma\u015f\u0131k ve s\u0131k\u00e7a render olan bile\u015fenlerde performans darbo\u011fazlar\u0131n\u0131 \u00f6nlemek i\u00e7in kritik \u00f6neme sahiptir. Gatsby projelerinde, bile\u015fen hiyerar\u015fileri b\u00fcy\u00fcd\u00fck\u00e7e bu Hook&#8217;lar\u0131n kullan\u0131m\u0131 daha da belirginle\u015fir. \u00d6zellikle listeler veya animasyonlar gibi yo\u011fun render d\u00f6ng\u00fclerinin oldu\u011fu yerlerde gereksiz hesaplamalar\u0131 veya fonksiyon referanslar\u0131n\u0131n yeniden olu\u015fturulmas\u0131n\u0131 engellerler.<\/p>\n<h4>Lazy Loading ve React.lazy, Suspense<\/h4>\n<p>Gatsby, varsay\u0131lan olarak kod b\u00f6lme (code splitting) yapar, ancak <code>React.lazy<\/code> ve <code>Suspense<\/code> ile daha gran\u00fcler bir kontrol sa\u011flayabiliriz. Bu, yaln\u0131zca belirli bir bile\u015fen ekranda g\u00f6r\u00fcnd\u00fc\u011f\u00fcnde veya belirli bir etkile\u015fim ger\u00e7ekle\u015fti\u011finde y\u00fcklenmesini istedi\u011fimiz bile\u015fenler i\u00e7in kullan\u0131\u015fl\u0131d\u0131r.<\/p>\n<pre><code class=\"language-jsx\">import React, { Suspense } from 'react';\n\nconst LazyComponent = React.lazy(() => import('.\/LazyComponent'));\n\nfunction MyPage() {\n  const [showLazy, setShowLazy] = useState(false);\n\n  return (\n    <div>\n      \n      <button onClick={() => setShowLazy(true)}>Dinamik Bile\u015feni G\u00f6ster<\/button>\n      {showLazy && (\n        <Suspense fallback={<div>Y\u00fckleniyor...<\/div>}>\n          <LazyComponent \/>\n        <\/Suspense>\n      )}\n    <\/div>\n  );\n}<\/code><\/pre>\n<p>Bu, \u00f6zellikle b\u00fcy\u00fck veya nadiren kullan\u0131lan bile\u015fenlerin ilk y\u00fckleme s\u00fcresini k\u0131saltmaya yard\u0131mc\u0131 olur.<\/p>\n<h3>Pratik Uygulama \u00d6rnekleri<\/h3>\n<p>\u015eimdiye kadar \u00f6\u011frendiklerimizi birle\u015ftirerek, Gatsby projelerinde s\u0131k\u00e7a kar\u015f\u0131la\u015f\u0131lan baz\u0131 senaryolar\u0131 Hooks ile nas\u0131l \u00e7\u00f6zebilece\u011fimize bakal\u0131m.<\/p>\n<h4>Tema De\u011fi\u015ftirme (Dark\/Light Mode) Custom Hook ile<\/h4>\n<p>Bu, <code>useState<\/code>, <code>useEffect<\/code> ve <code>useContext<\/code> Hook&#8217;lar\u0131n\u0131n harika bir kombinasyonunu g\u00f6sterir.<\/p>\n<pre><code class=\"language-jsx\">\/\/ src\/hooks\/useTheme.js\nimport { useState, useEffect, useContext, createContext } from 'react';\n\nconst ThemeContext = createContext(null);\n\nexport const useTheme = () => useContext(ThemeContext);\n\nexport const ThemeProvider = ({ children }) => {\n  const [theme, setTheme] = useState(() => {\n    if (typeof window !== 'undefined') {\n      return localStorage.getItem('theme') || 'light';\n    }\n    return 'light';\n  });\n\n  useEffect(() => {\n    if (typeof window !== 'undefined') {\n      document.body.className = theme;\n      localStorage.setItem('theme', theme);\n    }\n  }, [theme]);\n\n  const toggleTheme = () => {\n    setTheme(prevTheme => (prevTheme === 'light' ? 'dark' : 'light'));\n  };\n\n  return (\n    <ThemeContext.Provider value={{ theme, toggleTheme }}>\n      {children}\n    <\/ThemeContext.Provider>\n  );\n};\n\n\/\/ gatsby-browser.js ve gatsby-ssr.js i\u00e7inde:\n\/\/ import React from 'react';\n\/\/ import { ThemeProvider } from '.\/src\/hooks\/useTheme';\n\/\/ export const wrapRootElement = ({ element }) => (\n\/\/   <ThemeProvider>{element}<\/ThemeProvider>\n\/\/ );\n\n\/\/ src\/components\/Layout.js (veya herhangi bir bile\u015fen)\nimport React from 'react';\nimport { useTheme } from '..\/hooks\/useTheme';\n\nfunction Layout({ children }) {\n  const { theme, toggleTheme } = useTheme();\n\n  return (\n    <div className={<code>layout-${theme}<\/code>}>\n      <button onClick={toggleTheme}>\n        Temay\u0131 De\u011fi\u015ftir ({theme === 'light' ? 'Koyu' : 'A\u00e7\u0131k'})\n      <\/button>\n      {children}\n    <\/div>\n  );\n}\nexport default Layout;<\/code><\/pre>\n<p>Bu \u00f6rnek, tema durumunu <code>localStorage<\/code>&#8216;da saklayarak kal\u0131c\u0131l\u0131k sa\u011flar ve <code>document.body.className<\/code>&#8216;i g\u00fcncelleyerek CSS temalar\u0131n\u0131 uygular.<\/p>\n<h4>Form Y\u00f6netimi ve Validasyon<\/h4>\n<p>Formlar, <code>useState<\/code>&#8216;in en yayg\u0131n kullan\u0131m alanlar\u0131ndan biridir. Daha karma\u015f\u0131k formlar i\u00e7in <code>useReducer<\/code> veya \u00f6zel bir form Hook&#8217;u olu\u015fturmak daha uygun olabilir.<\/p>\n<pre><code class=\"language-jsx\">import React, { useState } from 'react';\n\nfunction ContactForm() {\n  const [formData, setFormData] = useState({\n    name: '',\n    email: '',\n    message: '',\n  });\n  const [errors, setErrors] = useState({});\n  const [isSubmitting, setIsSubmitting] = useState(false);\n\n  const handleChange = (e) => {\n    const { name, value } = e.target;\n    setFormData(prev => ({ ...prev, [name]: value }));\n  };\n\n  const validate = () => {\n    let newErrors = {};\n    if (!formData.name) newErrors.name = 'Ad alan\u0131 zorunludur.';\n    if (!formData.email) {\n      newErrors.email = 'Email alan\u0131 zorunludur.';\n    } else if (!\/\\S+@\\S+\\.\\S+\/.test(formData.email)) {\n      newErrors.email = 'Ge\u00e7ersiz email format\u0131.';\n    }\n    if (!formData.message) newErrors.message = 'Mesaj alan\u0131 zorunludur.';\n    return newErrors;\n  };\n\n  const handleSubmit = async (e) => {\n    e.preventDefault();\n    const validationErrors = validate();\n    setErrors(validationErrors);\n\n    if (Object.keys(validationErrors).length === 0) {\n      setIsSubmitting(true);\n      try {\n        \/\/ Form verilerini bir API'ye g\u00f6nder\n        const response = await fetch('\/api\/contact', {\n          method: 'POST',\n          headers: { 'Content-Type': 'application\/json' },\n          body: JSON.stringify(formData),\n        });\n        if (response.ok) {\n          alert('Mesaj\u0131n\u0131z ba\u015far\u0131yla g\u00f6nderildi!');\n          setFormData({ name: '', email: '', message: '' }); \/\/ Formu s\u0131f\u0131rla\n        } else {\n          alert('Mesaj g\u00f6nderilirken bir hata olu\u015ftu.');\n        }\n      } catch (error) {\n        console.error('Form g\u00f6nderme hatas\u0131:', error);\n        alert('Bir hata olu\u015ftu.');\n      } finally {\n        setIsSubmitting(false);\n      }\n    }\n  };\n\n  return (\n    <form onSubmit={handleSubmit}>\n      <div>\n        <label htmlFor=\"name\">Ad:<\/label>\n        <input\n          type=\"text\"\n          id=\"name\"\n          name=\"name\"\n          value={formData.name}\n          onChange={handleChange}\n        \/>\n        {errors.name && <p style={{ color: 'red' }}>{errors.name}<\/p>}\n      <\/div>\n      <div>\n        <label htmlFor=\"email\">Email:<\/label>\n        <input\n          type=\"email\"\n          id=\"email\"\n          name=\"email\"\n          value={formData.email}\n          onChange={handleChange}\n        \/>\n        {errors.email && <p style={{ color: 'red' }}>{errors.email}<\/p>}\n      <\/div>\n      <div>\n        <label htmlFor=\"message\">Mesaj:<\/label>\n        <textarea\n          id=\"message\"\n          name=\"message\"\n          value={formData.message}\n          onChange={handleChange}\n        ><\/textarea>\n        {errors.message && <p style={{ color: 'red' }}>{errors.message}<\/p>}\n      <\/div>\n      <button type=\"submit\" disabled={isSubmitting}>\n        {isSubmitting ? 'G\u00f6nderiliyor...' : 'G\u00f6nder'}\n      <\/button>\n    <\/form>\n  );\n}<\/code><\/pre>\n<h4>Gatsby Image ve Hooks<\/h4>\n<p><code>gatsby-plugin-image<\/code> modern resim optimizasyonu i\u00e7in en iyi \u00e7\u00f6z\u00fcmd\u00fcr. <code>useStaticQuery<\/code> ile bu plugin&#8217;in sundu\u011fu verileri \u00e7ekebilir ve <code>GatsbyImage<\/code> bile\u015feni ile kullanabiliriz.<\/p>\n<pre><code class=\"language-jsx\">import React from 'react';\nimport { useStaticQuery, graphql } from 'gatsby';\nimport { GatsbyImage, getImage } from 'gatsby-plugin-image';\n\nfunction SiteLogo() {\n  const data = useStaticQuery(graphql<code>\n    query {\n      placeholderImage: file(relativePath: { eq: \"gatsby-icon.png\" }) {\n        childImageSharp {\n          gatsbyImageData(\n            width: 100\n            placeholder: BLURRED\n            formats: [AUTO, WEBP, AVIF]\n          )\n        }\n      }\n    }\n  <\/code>);\n\n  const image = getImage(data.placeholderImage);\n\n  return <GatsbyImage image={image} alt=\"Gatsby Logo\" \/>;\n}<\/code><\/pre>\n<p>Bu, otomatik olarak responsive, lazy-loaded ve modern formatlarda (WebP, AVIF) resimler sunarak performans\u0131 art\u0131r\u0131r.<\/p>\n<h3>Geli\u015fmi\u015f Konular ve En \u0130yi Uygulamalar<\/h3>\n<p>Hooks ve Gatsby ile \u00e7al\u0131\u015f\u0131rken g\u00f6z \u00f6n\u00fcnde bulundurman\u0131z gereken baz\u0131 geli\u015fmi\u015f konular ve en iyi uygulamalar.<\/p>\n<h4>Custom Hooks Olu\u015fturma<\/h4>\n<p>Daha \u00f6nce de bahsetti\u011fimiz gibi, Custom Hooks, kod tekrar\u0131n\u0131 \u00f6nlemek ve mant\u0131\u011f\u0131 soyutlamak i\u00e7in harikad\u0131r.<br \/>\n*   <strong><code>useLocalStorage<\/code>:<\/strong> Taray\u0131c\u0131n\u0131n <code>localStorage<\/code>&#8216;\u0131nda veri depolamak ve almak i\u00e7in bir Hook.<br \/>\n*   <strong><code>useWindowSize<\/code>:<\/strong> Pencere boyutunu izlemek i\u00e7in bir Hook.<br \/>\n*   <strong><code>useForm<\/code>:<\/strong> Daha karma\u015f\u0131k formlar i\u00e7in validasyon ve durum y\u00f6netimini birle\u015ftiren bir Hook.<br \/>\nBu t\u00fcr Hook&#8217;lar, projenizin b\u00fcy\u00fckl\u00fc\u011f\u00fcne ve karma\u015f\u0131kl\u0131\u011f\u0131na g\u00f6re geli\u015ftirme h\u0131z\u0131n\u0131z\u0131 art\u0131rabilir.<\/p>\n<h4>Test Etme<\/h4>\n<p>React Hooks kullanan Gatsby bile\u015fenlerini test etmek i\u00e7in React Testing Library ve Jest gibi ara\u00e7lar kullan\u0131l\u0131r. \u00d6zellikle Hook&#8217;lar\u0131n kendilerini test etmek i\u00e7in <code>@testing-library\/react-hooks<\/code> (\u015fimdiki ad\u0131yla <code>@testing-library\/react<\/code> i\u00e7inde yerle\u015fik) kullan\u0131\u015fl\u0131d\u0131r.<br \/>\n*   <strong>Unit testler:<\/strong> Her bir Hook&#8217;un veya k\u00fc\u00e7\u00fck bile\u015fenin do\u011fru \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131 do\u011frular.<br \/>\n*   <strong>Entegrasyon testleri:<\/strong> Birden fazla bile\u015fenin veya Hook&#8217;un bir arada nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 test eder.<br \/>\nGatsby&#8217;nin build s\u00fcrecini sim\u00fcle etmek i\u00e7in \u00f6zel yap\u0131land\u0131rmalar gerekebilir, ancak genel olarak standart React test yakla\u015f\u0131mlar\u0131 ge\u00e7erlidir.<\/p>\n<h4>Eri\u015filebilirlik (Accessibility)<\/h4>\n<p>Hooks ile bile\u015fenler geli\u015ftirirken eri\u015filebilirli\u011fi g\u00f6z ard\u0131 etmeyin.<br \/>\n*   <strong>Anlamsal HTML:<\/strong> Do\u011fru HTML etiketlerini kullan\u0131n (\u00f6rn. <code>button<\/code>, <code>a<\/code>, <code>h1<\/code>).<br \/>\n*   <strong>ARIA rolleri ve \u00f6zellikleri:<\/strong> Gerekti\u011finde ARIA (Accessible Rich Internet Applications) rollerini ve \u00f6zelliklerini ekleyin.<br \/>\n*   <strong>Klavye navigasyonu:<\/strong> <code>useRef<\/code> kullanarak DOM elemanlar\u0131na odaklanma gibi \u00f6zelliklerle klavye kullan\u0131c\u0131lar\u0131 i\u00e7in deneyimi iyile\u015ftirin.<\/p>\n<h4>TypeScript ile Kullan\u0131m<\/h4>\n<p>TypeScript, Hooks ile geli\u015ftirme yaparken tip g\u00fcvenli\u011fi sa\u011flayarak hatalar\u0131 azalt\u0131r ve kodun anla\u015f\u0131l\u0131rl\u0131\u011f\u0131n\u0131 art\u0131r\u0131r.<br \/>\n*   <code>useState<Type><\/code>: Durum de\u011fi\u015fkenlerinin tipini belirtmek.<br \/>\n*   <code>useReducer<Reducer, State><\/code>: Reducer fonksiyonlar\u0131 ve durum i\u00e7in tip tan\u0131mlar\u0131.<br \/>\n*   Custom Hooks i\u00e7in \u00f6zel tip aray\u00fczleri olu\u015fturmak.<\/p>\n<pre><code class=\"language-typescript\">import React, { useState, useEffect } from 'react';\n\ninterface User {\n  id: number;\n  name: string;\n  email: string;\n}\n\nfunction UserProfile({ userId }: { userId: number }) {\n  const [user, setUser] = useState<User | null>(null);\n  const [loading, setLoading] = useState<boolean>(true);\n\n  \/\/ ... (useEffect i\u00e7eri\u011fi ayn\u0131 kal\u0131r)\n}<\/code><\/pre>\n<h3>S\u0131k Kar\u015f\u0131la\u015f\u0131lan Sorunlar ve \u00c7\u00f6z\u00fcmleri<\/h3>\n<p>Hooks ile \u00e7al\u0131\u015f\u0131rken kar\u015f\u0131la\u015f\u0131labilecek baz\u0131 yayg\u0131n sorunlar ve bunlara y\u00f6nelik \u00e7\u00f6z\u00fcmler.<\/p>\n<h4>Dependency Array (<code>useEffect<\/code>): Eksik Ba\u011f\u0131ml\u0131l\u0131klar ve Sonsuz D\u00f6ng\u00fcler<\/h4>\n<p><code>useEffect<\/code>&#8216;in ba\u011f\u0131ml\u0131l\u0131k dizisini do\u011fru kullanmak \u00e7ok \u00f6nemlidir.<br \/>\n*   <strong>Eksik ba\u011f\u0131ml\u0131l\u0131klar:<\/strong> <code>useEffect<\/code> i\u00e7inde kullan\u0131lan ancak ba\u011f\u0131ml\u0131l\u0131k dizisine dahil edilmeyen de\u011fi\u015fkenler, Hook&#8217;un eski de\u011ferlerle \u00e7al\u0131\u015fmas\u0131na neden olabilir. Bu durum, beklenmedik davran\u0131\u015flara yol a\u00e7ar. ESLint&#8217;in <code>exhaustive-deps<\/code> kural\u0131 bu t\u00fcr sorunlar\u0131 otomatik olarak tespit eder.<br \/>\n*   <strong>Sonsuz d\u00f6ng\u00fcler:<\/strong> Ba\u011f\u0131ml\u0131l\u0131k dizisindeki bir de\u011fi\u015fken her render&#8217;da yeni bir referansla olu\u015fturuluyorsa (\u00f6rne\u011fin, bir fonksiyon veya obje tan\u0131m\u0131), <code>useEffect<\/code> her zaman yeniden \u00e7al\u0131\u015f\u0131r ve sonsuz bir d\u00f6ng\u00fcye neden olabilir. Bu durumda <code>useCallback<\/code> veya <code>useMemo<\/code> kullanarak referans\u0131 sabitlemek gerekir.<\/p>\n<h4><code>useStaticQuery<\/code> K\u0131s\u0131tlamalar\u0131<\/h4>\n<p><code>useStaticQuery<\/code> \u00e7ok kullan\u0131\u015fl\u0131 olsa da, dinamik sorgular\u0131 desteklemez. Yani sorgu i\u00e7inde JavaScript de\u011fi\u015fkenleri veya prop&#8217;lar kullanamazs\u0131n\u0131z. Dinamik veri \u00e7ekmeniz gerekti\u011finde, sayfa sorgular\u0131n\u0131 veya <code>useEffect<\/code> i\u00e7inde runtime API \u00e7a\u011fr\u0131lar\u0131n\u0131 kullanman\u0131z gerekir.<\/p>\n<h4>SSR (Server-Side Rendering) ve Hydration<\/h4>\n<p>Gatsby, build time&#8217;da sayfalar\u0131 \u00f6nceden render eder (SSR benzeri bir s\u00fcre\u00e7). Bu, Hooks&#8217;un ilk render s\u0131ras\u0131nda taray\u0131c\u0131 ortam\u0131na eri\u015fim gerektiren (\u00f6rne\u011fin <code>window<\/code> veya <code>document<\/code>) baz\u0131 \u00f6zelliklerinin sunucu taraf\u0131nda \u00e7al\u0131\u015famayaca\u011f\u0131 anlam\u0131na gelir. <code>useEffect<\/code> bu t\u00fcr yan etkileri genellikle taray\u0131c\u0131 ortam\u0131nda \u00e7al\u0131\u015ft\u0131r\u0131r. E\u011fer bir Hook sunucu taraf\u0131nda \u00e7al\u0131\u015fmas\u0131 gereken bir <code>window<\/code> veya <code>document<\/code> referans\u0131 i\u00e7eriyorsa, bunu <code>typeof window !== 'undefined'<\/code> kontrol\u00fc ile koruman\u0131z gerekebilir.<\/p>\n<h4>Performans Sorunlar\u0131: Gereksiz Render&#8217;lar<\/h4>\n<p><code>useMemo<\/code> ve <code>useCallback<\/code> do\u011fru kullan\u0131lmad\u0131\u011f\u0131nda veya hi\u00e7 kullan\u0131lmad\u0131\u011f\u0131nda, React bile\u015fenleri gereksiz yere yeniden render olabilir. Bu, \u00f6zellikle b\u00fcy\u00fck ve karma\u015f\u0131k uygulamalarda performans\u0131 d\u00fc\u015f\u00fcrebilir. Bile\u015fenlerinizin ne zaman ve neden yeniden render oldu\u011funu anlamak i\u00e7in React Developer Tools&#8217;daki Profiler&#8217;\u0131 kullanmak faydal\u0131d\u0131r.<\/p>\n<h3>Sonu\u00e7 ve Gelecek<\/h3>\n<p>Gatsby ve React Hooks, modern web geli\u015ftirmenin en g\u00fc\u00e7l\u00fc ikililerinden birini olu\u015fturuyor. Hooks, React bile\u015fenlerimize durum ve ya\u015fam d\u00f6ng\u00fcs\u00fc \u00f6zelliklerini fonksiyonel bir \u015fekilde entegre etmemizi sa\u011flayarak kodu daha temiz, daha okunabilir ve daha yeniden kullan\u0131labilir hale getiriyor. Gatsby ise bu React bile\u015fenlerini al\u0131p, GraphQL veri katman\u0131 ve geli\u015fmi\u015f optimizasyon teknikleriyle birle\u015ftirerek inan\u0131lmaz derecede h\u0131zl\u0131 ve SEO dostu statik siteler olu\u015fturuyor.<\/p>\n<p>Bu sinerji, geli\u015ftiricilere hem build time hem de runtime a\u015famas\u0131nda verimli veri y\u00f6netimi, \u00fcst\u00fcn performans optimizasyonu ve daha keyifli bir geli\u015ftirme deneyimi sunuyor. <code>useStaticQuery<\/code> ile build time&#8217;da veri \u00e7ekmekten, <code>useEffect<\/code> ile runtime&#8217;da dinamik i\u00e7erik y\u00fcklemeye, Custom Hooks ile tekrar kullan\u0131labilir mant\u0131k olu\u015fturmaya kadar, React Hooks Gatsby projelerinizin potansiyelini katlayarak art\u0131r\u0131yor.<\/p>\n<p>Gelecekte, React ve Gatsby ekosistemleri evrilmeye devam edecek. Hooks&#8217;un daha da optimize edilmi\u015f versiyonlar\u0131, Concurrent React gibi yeni \u00f6zellikler ve Gatsby&#8217;nin veri kaynaklar\u0131n\u0131 entegre etme yetenekleri, web geli\u015ftiricileri i\u00e7in daha da heyecan verici f\u0131rsatlar sunacak. Bu teknolojileri benimseyerek ve en iyi uygulamalar\u0131 takip ederek, hem bug\u00fcn\u00fcn hem de yar\u0131n\u0131n web projeleri i\u00e7in sa\u011flam, performansl\u0131 ve s\u00fcrd\u00fcr\u00fclebilir \u00e7\u00f6z\u00fcmler \u00fcretebilirsiniz.<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Gatsby&#8217;de React Hooks Kullan\u0131m\u0131: Modern Web Geli\u015ftirmenin G\u00fcc\u00fc\nWeb geli\u015ftirme d\u00fcnyas\u0131 s\u00fcrekli evriliyor ve bu evrimin en \u00f6nemli duraklar\u0131n","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":[128],"tags":[],"class_list":{"0":"post-31510","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-react","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) - 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