JavaScript DOM Se\u00e7im Y\u00f6ntemleri<\/title><\/p>\n<style>\n body { font-family: sans-serif; line-height: 1.6; }\n h1 { font-size: 2em; }\n h2 { font-size: 1.5em; }\n h3 { font-size: 1.2em; }\n code { background-color: #f0f0f0; padding: 0.2em 0.4em; border-radius: 3px; }\n pre { background-color: #f0f0f0; padding: 1em; border-radius: 5px; overflow-x: auto; }\n table { width: 100%; border-collapse: collapse; }\n th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }\n .warning { background-color: #ffffe0; border: 1px solid #ffddcc; padding: 10px; margin-bottom: 10px; }\n @media (max-width: 768px) {\n body { font-size: 14px; }\n }\n <\/style>\n<p><\/head><br \/>\n<body><\/p>\n<p> JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak<\/p>\n<p>Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. Bu makalede, JavaScript'in g\u00fc\u00e7l\u00fc DOM se\u00e7im y\u00f6ntemlerini ad\u0131m ad\u0131m inceleyece\u011fiz ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirece\u011fiz.<\/p>\n<h2>Temel Kavramlar: DOM Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\n<p>DOM, bir HTML veya XML belgesinin a\u011fa\u00e7 yap\u0131s\u0131 g\u00f6sterimidir. JavaScript, bu a\u011fa\u00e7 yap\u0131s\u0131 \u00fczerinden d\u00fc\u011f\u00fcmlere (nodes) eri\u015ferek i\u00e7eri\u011fini de\u011fi\u015ftirebilir, stilini d\u00fczenleyebilir ve olaylar\u0131 tetikleyebilir. Her HTML \u00f6\u011fesi, bir DOM d\u00fc\u011f\u00fcm\u00fcd\u00fcr ve di\u011fer d\u00fc\u011f\u00fcmlerle hiyerar\u015fik bir ili\u015fki i\u00e7indedir. \u00d6rne\u011fin, <code><body><\/code> d\u00fc\u011f\u00fcm\u00fc <code><\/p>\n<p><\/code> d\u00fc\u011f\u00fcmlerini, <code><\/p>\n<p><\/code> d\u00fc\u011f\u00fcmleri de metin d\u00fc\u011f\u00fcmlerini i\u00e7erebilir. DOM'u anlamak, DOM se\u00e7im y\u00f6ntemlerini etkin bir \u015fekilde kullanabilmek i\u00e7in temel bir \u00f6n ko\u015fuldur. DOM'un dinamik yap\u0131s\u0131, web sayfalar\u0131n\u0131n ger\u00e7ek zamanl\u0131 olarak g\u00fcncellenmesine olanak tan\u0131r. Bu, kullan\u0131c\u0131 etkile\u015fimlerine h\u0131zl\u0131 ve etkili bir \u015fekilde yan\u0131t vermeyi sa\u011flar. \u00d6rne\u011fin, bir form g\u00f6nderildi\u011finde DOM g\u00fcncellenir ve yeni i\u00e7erik eklenebilir veya var olan i\u00e7erik de\u011fi\u015ftirilebilir. Bu dinamik g\u00fcncellemeler, zengin ve etkile\u015fimli web deneyimleri olu\u015fturmak i\u00e7in kritik \u00f6neme sahiptir. DOM'un anla\u015f\u0131lmas\u0131, front-end geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz.<\/p>\n<h2>getElementById: ID'ye G\u00f6re Se\u00e7im<\/h2>\n<p><code>getElementById()<\/code> y\u00f6ntemi, ID \u00f6zelli\u011fi belirtilen tek bir DOM \u00f6\u011fesini se\u00e7mek i\u00e7in kullan\u0131l\u0131r. Bu y\u00f6ntem, h\u0131zl\u0131 ve verimlidir \u00e7\u00fcnk\u00fc ID'ler benzersizdir. Ancak, yaln\u0131zca bir \u00f6\u011fe se\u00e7ebildi\u011fi i\u00e7in, birden fazla \u00f6\u011feyi se\u00e7mek gerekti\u011finde yetersiz kal\u0131r. \u00d6rne\u011fin, sayfada sadece bir tane “myParagraph” ID'li paragraf varsa:<\/p>\n<p> <code><br \/>\n const paragraph = document.getElementById(\"myParagraph\");<br \/>\n paragraph.textContent = \"Metin de\u011fi\u015ftirildi!\";<br \/>\n <\/code><\/p>\n<p>Bu kod blo\u011fu, “myParagraph” ID'li paragraf\u0131 se\u00e7er ve i\u00e7erik metnini de\u011fi\u015ftirir. E\u011fer birden fazla \u00f6\u011fe se\u00e7meniz gerekiyorsa, <code>querySelector()<\/code> veya <code>querySelectorAll()<\/code> y\u00f6ntemlerini kullanman\u0131z daha uygun olur. <code>getElementById()<\/code>'in h\u0131z avantaj\u0131n\u0131 unutmamak \u00f6nemlidir; tek bir \u00f6\u011fe i\u00e7in en h\u0131zl\u0131 se\u00e7im y\u00f6ntemidir.<\/p>\n<h2>querySelector ve querySelectorAll: CSS Se\u00e7icileri ile Se\u00e7im<\/h2>\n<h3>querySelector Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n<p><code>querySelector()<\/code> y\u00f6ntemi, CSS se\u00e7icileri kullanarak ilk e\u015fle\u015fen DOM \u00f6\u011fesini se\u00e7er. Bu y\u00f6ntem, ID, s\u0131n\u0131f, etiket ad\u0131 gibi \u00e7e\u015fitli \u00f6zelliklere g\u00f6re se\u00e7im yapmay\u0131 sa\u011flar. \u00d6rne\u011fin:<\/p>\n<p> <code><br \/>\n const firstParagraph = document.querySelector(\"p\"); \/\/ \u0130lk paragraf\u0131 se\u00e7er<br \/>\n const specificClass = document.querySelector(\".myClass\"); \/\/ \".myClass\" s\u0131n\u0131f\u0131na sahip ilk \u00f6\u011feyi se\u00e7er<br \/>\n const specificElement = document.querySelector(\"#myElement\"); \/\/ \"myElement\" ID'li \u00f6\u011feyi se\u00e7er<\/p>\n<p> <\/code><\/p>\n<h3>querySelectorAll Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n<p><code>querySelectorAll()<\/code> ise, CSS se\u00e7icileri kullanarak t\u00fcm e\u015fle\u015fen DOM \u00f6\u011felerini bir NodeList olarak d\u00f6nd\u00fcr\u00fcr. NodeList, canl\u0131 bir koleksiyondur, yani DOM g\u00fcncellendi\u011finde otomatik olarak g\u00fcncellenir. \u00d6rne\u011fin:<\/p>\n<p> <code><br \/>\n const allParagraphs = document.querySelectorAll(\"p\"); \/\/ T\u00fcm paragraflar\u0131 se\u00e7er<br \/>\n allParagraphs.forEach(paragraph => {<br \/>\n paragraph.style.color = \"blue\"; \/\/ Her paragraf\u0131n rengini mavi yapar<br \/>\n });<br \/>\n <\/code><\/p>\n<p>Bu \u00f6rnekte, t\u00fcm paragraflar se\u00e7ilip renkleri de\u011fi\u015ftirilir. <code>querySelectorAll()<\/code>'in <code>forEach<\/code> d\u00f6ng\u00fcs\u00fcyle kullan\u0131lmas\u0131, birden \u00e7ok \u00f6\u011feyi etkili bir \u015fekilde i\u015flemek i\u00e7in idealdir. Performans a\u00e7\u0131s\u0131ndan, <code>querySelectorAll()<\/code>'in <code>getElementsByTagName()<\/code>'den daha verimli oldu\u011fu durumlar vard\u0131r, \u00f6zellikle karma\u015f\u0131k CSS se\u00e7iciler kullan\u0131ld\u0131\u011f\u0131nda.<\/p>\n<h2>getElementsByTagName, getElementsByClassName ve getElementsByName: \u00d6zel Y\u00f6ntemler<\/h2>\n<p>Bu y\u00f6ntemler, <code>querySelectorAll()<\/code>'e g\u00f6re daha \u00f6zelle\u015fmi\u015f se\u00e7im imkan\u0131 sunarlar. <code>getElementsByTagName()<\/code> HTML etiket ad\u0131na g\u00f6re, <code>getElementsByClassName()<\/code> s\u0131n\u0131f ad\u0131na g\u00f6re, <code>getElementsByName()<\/code> ise <code>name<\/code> \u00f6zniteli\u011fine g\u00f6re se\u00e7imler yapar. \u00d6nemli bir fark ise bu y\u00f6ntemlerin canl\u0131 koleksiyonlar d\u00f6nd\u00fcrmesidir, yani DOM g\u00fcncellendi\u011finde bu koleksiyonlar da otomatik olarak g\u00fcncellenir. Bu, performans ve kodun g\u00fcncelli\u011fini koruma a\u00e7\u0131s\u0131ndan \u00f6nemlidir. Ancak, bu canl\u0131 koleksiyonlar \u00fczerinde yap\u0131lan de\u011fi\u015fiklikler, orijinal DOM yap\u0131s\u0131nda da de\u011fi\u015fiklikler olu\u015fturur.<\/p>\n<p> <code><br \/>\n const allDivs = document.getElementsByTagName(\"div\"); \/\/ T\u00fcm div elementlerini se\u00e7er<br \/>\n const elementsWithClass = document.getElementsByClassName(\"myClass\"); \/\/ myClass s\u0131n\u0131f\u0131na sahip t\u00fcm elementleri se\u00e7er<br \/>\n const elementsWithName = document.getElementsByName(\"myName\"); \/\/ name \u00f6zniteli\u011fi myName olan t\u00fcm elementleri se\u00e7er<br \/>\n <\/code><\/p>\n<p>Bu y\u00f6ntemler, <code>querySelectorAll<\/code> ile ayn\u0131 sonucu verebilir, ancak daha spesifik ve baz\u0131 durumlarda daha h\u0131zl\u0131 olabilirler. Se\u00e7im yaparken, kullanaca\u011f\u0131n\u0131z y\u00f6ntemin performans\u0131n\u0131 ve ihtiya\u00e7lar\u0131n\u0131z\u0131 g\u00f6z \u00f6n\u00fcnde bulundurman\u0131z \u00f6nemlidir.<\/p>\n<h2>\u0130leri D\u00fczey Teknikler: Performans Optimizasyonu ve G\u00fcvenlik<\/h2>\n<h3>Performans Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/h3>\n<p>DOM se\u00e7im y\u00f6ntemlerinin performans\u0131, se\u00e7ilen \u00f6\u011felerin say\u0131s\u0131 ve se\u00e7ici karma\u015f\u0131kl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r. Genel olarak, <code>getElementById()<\/code> en h\u0131zl\u0131 y\u00f6ntemdir, \u00e7\u00fcnk\u00fc ID'ler benzersizdir. <code>querySelector()<\/code> ve <code>querySelectorAll()<\/code>, karma\u015f\u0131k se\u00e7iciler kullan\u0131ld\u0131\u011f\u0131nda daha yava\u015f olabilir. <code>getElementsByTagName()<\/code>, <code>getElementsByClassName()<\/code> ve <code>getElementsByName()<\/code> ise, b\u00fcy\u00fck say\u0131da \u00f6\u011fe se\u00e7ildi\u011finde performans kayb\u0131na neden olabilir. A\u015fa\u011f\u0131daki tabloda, farkl\u0131 y\u00f6ntemlerin performans kar\u015f\u0131la\u015ft\u0131rmas\u0131n\u0131 g\u00f6rebilirsiniz:<\/p>\n<table>\n<thead>\n<tr>\n<th>Y\u00f6ntem<\/th>\n<th>Performans<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>getElementById()<\/code><\/td>\n<td>En h\u0131zl\u0131<\/td>\n<td>Tek, benzersiz ID'li \u00f6\u011fe se\u00e7imi i\u00e7in ideal<\/td>\n<\/tr>\n<tr>\n<td><code>querySelector()<\/code><\/td>\n<td>Orta<\/td>\n<td>\u0130lk e\u015fle\u015fen \u00f6\u011feyi se\u00e7er, karma\u015f\u0131k se\u00e7iciler yava\u015flayabilir<\/td>\n<\/tr>\n<tr>\n<td><code>querySelectorAll()<\/code><\/td>\n<td>Orta – Yava\u015f (\u00f6\u011fe say\u0131s\u0131na ba\u011fl\u0131)<\/td>\n<td>T\u00fcm e\u015fle\u015fen \u00f6\u011feleri se\u00e7er, b\u00fcy\u00fck say\u0131da \u00f6\u011fe performans\u0131 d\u00fc\u015f\u00fcrebilir<\/td>\n<\/tr>\n<tr>\n<td><code>getElementsByTagName()<\/code>, <code>getElementsByClassName()<\/code>, <code>getElementsByName()<\/code><\/td>\n<td>Yava\u015f (\u00f6\u011fe say\u0131s\u0131na ba\u011fl\u0131)<\/td>\n<td>Canl\u0131 koleksiyonlar d\u00f6nd\u00fcr\u00fcr, b\u00fcy\u00fck say\u0131da \u00f6\u011fe performans\u0131 d\u00fc\u015f\u00fcrebilir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"warning\">\n<h4>Dikkat! G\u00fcvenlik Uyar\u0131s\u0131<\/h4>\n<p>Kullan\u0131c\u0131 girdilerine dayal\u0131 DOM se\u00e7im i\u015flemlerinde XSS (Cross-Site Scripting) sald\u0131r\u0131lar\u0131na kar\u015f\u0131 dikkatli olmak \u00e7ok \u00f6nemlidir. Kullan\u0131c\u0131 girdilerini do\u011frulamadan do\u011frudan DOM se\u00e7im i\u015flemlerinde kullanmay\u0131n. G\u00fcvenli kodlama uygulamalar\u0131, g\u00fcvenli\u011finizi ve web sitenizin sa\u011fl\u0131\u011f\u0131n\u0131 koruman\u0131n anahtar\u0131d\u0131r. Daha g\u00fcvenli kodlama teknikleri hakk\u0131nda bilgi edinmek i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresini ziyaret edebilirsiniz.<\/p>\n<\/p><\/div>\n<h2>Ger\u00e7ek D\u00fcnya Senaryolar\u0131<\/h2>\n<p>Bir e-ticaret sitesinde, \u00fcr\u00fcn listesinin dinamik olarak g\u00fcncellenmesi i\u00e7in <code>querySelectorAll()<\/code> kullan\u0131labilir. Kullan\u0131c\u0131 bir filtre uygulad\u0131\u011f\u0131nda, <code>querySelectorAll()<\/code> ile ilgili \u00fcr\u00fcnler se\u00e7ilip g\u00f6sterilebilir. Bir blog sitesinde, yorumlar\u0131n g\u00f6r\u00fcnt\u00fclenmesi i\u00e7in <code>getElementsByClassName()<\/code> kullan\u0131labilir. Yeni yorumlar eklendi\u011finde, <code>getElementsByClassName()<\/code> ile yorum b\u00f6l\u00fcm\u00fc dinamik olarak g\u00fcncellenebilir. Bu \u00f6rnekler, DOM se\u00e7im y\u00f6ntemlerinin ger\u00e7ek d\u00fcnya uygulamalar\u0131nda ne kadar \u00f6nemli oldu\u011funu g\u00f6stermektedir.<\/p>\n<h2>\u00d6\u011frenme Yol Haritas\u0131<\/h2>\n<ul>\n<li><strong>Yeni Ba\u015flayan:<\/strong> <code>getElementById()<\/code>, <code>getElementsByTagName()<\/code>, basit <code>querySelector()<\/code> kullan\u0131mlar\u0131 ile ba\u015flayabilirsiniz.<\/li>\n<li><strong>Orta Seviye:<\/strong> <code>querySelectorAll()<\/code> ile birden \u00e7ok \u00f6\u011fe se\u00e7imi, CSS se\u00e7icilerini daha detayl\u0131 \u00f6\u011frenme ve <code>forEach<\/code> d\u00f6ng\u00fcs\u00fc ile birlikte kullanma.<\/li>\n<li><strong>\u0130leri Seviye:<\/strong> Performans optimizasyonu teknikleri, karma\u015f\u0131k CSS se\u00e7icileri, canl\u0131 koleksiyonlar ve performans sorunlar\u0131 ile ba\u015fa \u00e7\u0131kma stratejileri.<\/li>\n<\/ul>\n<h2>Sonu\u00e7<\/h2>\n<p>JavaScript DOM se\u00e7im y\u00f6ntemleri, web geli\u015ftirmede hayati \u00f6neme sahiptir. Do\u011fru y\u00f6ntemleri se\u00e7mek, kodunuzun performans\u0131n\u0131 ve okunabilirli\u011fini art\u0131r\u0131r. Bu makalede, en yayg\u0131n DOM se\u00e7im y\u00f6ntemlerini ve bunlar\u0131n nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 \u00f6\u011frendik. Uygulama yaparak ve farkl\u0131 y\u00f6ntemleri deneyerek, DOM manip\u00fclasyonunda uzmanla\u015fabilirsiniz.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular<\/h3>\n<ul>\n<li><strong>Soru:<\/strong> <code>querySelector()<\/code> ve <code>querySelectorAll()<\/code> aras\u0131nda ne fark var?<\/li>\n<li><strong>Cevap:<\/strong> <code>querySelector()<\/code> ilk e\u015fle\u015feni d\u00f6nd\u00fcr\u00fcrken, <code>querySelectorAll()<\/code> t\u00fcm e\u015fle\u015fenleri bir NodeList olarak d\u00f6nd\u00fcr\u00fcr.<\/li>\n<li><strong>Soru:<\/strong> Canl\u0131 koleksiyonlar nedir ve neden \u00f6nemlidir?<\/li>\n<li><strong>Cevap:<\/strong> Canl\u0131 koleksiyonlar, DOM g\u00fcncellendi\u011finde otomatik olarak g\u00fcncellenen koleksiyonlard\u0131r. Bu, kodun g\u00fcncelli\u011fini korumas\u0131 i\u00e7in \u00f6nemlidir.<\/li>\n<li><strong>Soru:<\/strong> Hangi y\u00f6ntem en h\u0131zl\u0131d\u0131r?<\/li>\n<li><strong>Cevap:<\/strong> Genellikle <code>getElementById()<\/code> en h\u0131zl\u0131 y\u00f6ntemdir.<\/li>\n<li><strong>Soru:<\/strong> Performans\u0131 nas\u0131l optimize edebilirim?<\/li>\n<li><strong>Cevap:<\/strong> Gereksiz DOM i\u015flemlerinden ka\u00e7\u0131narak, do\u011fru se\u00e7iciyi kullanarak ve b\u00fcy\u00fck DOM i\u015flemlerini k\u00fc\u00e7\u00fck par\u00e7alara b\u00f6lerek performans\u0131 optimize edebilirsiniz.<\/li>\n<\/ul>\n<p>Yazar: Fatih Soysal<\/p>\n<p><\/body><br \/>\n<\/html><\/pre>\n<p><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript DOM Se\u00e7im Y\u00f6ntemleri JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek…","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-28553","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n<title>JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak<\/title>\n<meta name=\"description\" content=\"Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. Bu makalede, JavaScript'in g\u00fc\u00e7l\u00fc DOM se\u00e7im y\u00f6ntemlerini ad\u0131m ad\u0131m inceleyece\u011fiz ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirece\u011fiz.\" \/>\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\/javascript-dom-secim-yontemlerini-anlamak\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak\" \/>\n<meta property=\"og:description\" content=\"Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. 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{"id":28553,"date":"2025-09-01T08:00:26","date_gmt":"2025-09-01T05:00:26","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/"},"modified":"2025-09-01T08:00:26","modified_gmt":"2025-09-01T05:00:26","slug":"javascript-dom-secim-yontemlerini-anlamak","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/","title":{"rendered":"JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak"},"content":{"rendered":"

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\n JavaScript DOM Se\u00e7im Y\u00f6ntemleri<\/title><\/p>\n<style>\n body { font-family: sans-serif; line-height: 1.6; }\n h1 { font-size: 2em; }\n h2 { font-size: 1.5em; }\n h3 { font-size: 1.2em; }\n code { background-color: #f0f0f0; padding: 0.2em 0.4em; border-radius: 3px; }\n pre { background-color: #f0f0f0; padding: 1em; border-radius: 5px; overflow-x: auto; }\n table { width: 100%; border-collapse: collapse; }\n th, td { border: 1px solid #ddd; padding: 8px; text-align: left; }\n .warning { background-color: #ffffe0; border: 1px solid #ffddcc; padding: 10px; margin-bottom: 10px; }\n @media (max-width: 768px) {\n body { font-size: 14px; }\n }\n <\/style>\n<p><\/head><br \/>\n<body><\/p>\n<p> JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak<\/p>\n<p>Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. Bu makalede, JavaScript'in g\u00fc\u00e7l\u00fc DOM se\u00e7im y\u00f6ntemlerini ad\u0131m ad\u0131m inceleyece\u011fiz ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirece\u011fiz.<\/p>\n<h2>Temel Kavramlar: DOM Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\n<p>DOM, bir HTML veya XML belgesinin a\u011fa\u00e7 yap\u0131s\u0131 g\u00f6sterimidir. JavaScript, bu a\u011fa\u00e7 yap\u0131s\u0131 \u00fczerinden d\u00fc\u011f\u00fcmlere (nodes) eri\u015ferek i\u00e7eri\u011fini de\u011fi\u015ftirebilir, stilini d\u00fczenleyebilir ve olaylar\u0131 tetikleyebilir. Her HTML \u00f6\u011fesi, bir DOM d\u00fc\u011f\u00fcm\u00fcd\u00fcr ve di\u011fer d\u00fc\u011f\u00fcmlerle hiyerar\u015fik bir ili\u015fki i\u00e7indedir. \u00d6rne\u011fin, <code><body><\/code> d\u00fc\u011f\u00fcm\u00fc <code><\/p>\n<p><\/code> d\u00fc\u011f\u00fcmlerini, <code><\/p>\n<p><\/code> d\u00fc\u011f\u00fcmleri de metin d\u00fc\u011f\u00fcmlerini i\u00e7erebilir. DOM'u anlamak, DOM se\u00e7im y\u00f6ntemlerini etkin bir \u015fekilde kullanabilmek i\u00e7in temel bir \u00f6n ko\u015fuldur. DOM'un dinamik yap\u0131s\u0131, web sayfalar\u0131n\u0131n ger\u00e7ek zamanl\u0131 olarak g\u00fcncellenmesine olanak tan\u0131r. Bu, kullan\u0131c\u0131 etkile\u015fimlerine h\u0131zl\u0131 ve etkili bir \u015fekilde yan\u0131t vermeyi sa\u011flar. \u00d6rne\u011fin, bir form g\u00f6nderildi\u011finde DOM g\u00fcncellenir ve yeni i\u00e7erik eklenebilir veya var olan i\u00e7erik de\u011fi\u015ftirilebilir. Bu dinamik g\u00fcncellemeler, zengin ve etkile\u015fimli web deneyimleri olu\u015fturmak i\u00e7in kritik \u00f6neme sahiptir. DOM'un anla\u015f\u0131lmas\u0131, front-end geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz.<\/p>\n<h2>getElementById: ID'ye G\u00f6re Se\u00e7im<\/h2>\n<p><code>getElementById()<\/code> y\u00f6ntemi, ID \u00f6zelli\u011fi belirtilen tek bir DOM \u00f6\u011fesini se\u00e7mek i\u00e7in kullan\u0131l\u0131r. Bu y\u00f6ntem, h\u0131zl\u0131 ve verimlidir \u00e7\u00fcnk\u00fc ID'ler benzersizdir. Ancak, yaln\u0131zca bir \u00f6\u011fe se\u00e7ebildi\u011fi i\u00e7in, birden fazla \u00f6\u011feyi se\u00e7mek gerekti\u011finde yetersiz kal\u0131r. \u00d6rne\u011fin, sayfada sadece bir tane “myParagraph” ID'li paragraf varsa:<\/p>\n<p> <code><br \/>\n const paragraph = document.getElementById(\"myParagraph\");<br \/>\n paragraph.textContent = \"Metin de\u011fi\u015ftirildi!\";<br \/>\n <\/code><\/p>\n<p>Bu kod blo\u011fu, “myParagraph” ID'li paragraf\u0131 se\u00e7er ve i\u00e7erik metnini de\u011fi\u015ftirir. E\u011fer birden fazla \u00f6\u011fe se\u00e7meniz gerekiyorsa, <code>querySelector()<\/code> veya <code>querySelectorAll()<\/code> y\u00f6ntemlerini kullanman\u0131z daha uygun olur. <code>getElementById()<\/code>'in h\u0131z avantaj\u0131n\u0131 unutmamak \u00f6nemlidir; tek bir \u00f6\u011fe i\u00e7in en h\u0131zl\u0131 se\u00e7im y\u00f6ntemidir.<\/p>\n<h2>querySelector ve querySelectorAll: CSS Se\u00e7icileri ile Se\u00e7im<\/h2>\n<h3>querySelector Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n<p><code>querySelector()<\/code> y\u00f6ntemi, CSS se\u00e7icileri kullanarak ilk e\u015fle\u015fen DOM \u00f6\u011fesini se\u00e7er. Bu y\u00f6ntem, ID, s\u0131n\u0131f, etiket ad\u0131 gibi \u00e7e\u015fitli \u00f6zelliklere g\u00f6re se\u00e7im yapmay\u0131 sa\u011flar. \u00d6rne\u011fin:<\/p>\n<p> <code><br \/>\n const firstParagraph = document.querySelector(\"p\"); \/\/ \u0130lk paragraf\u0131 se\u00e7er<br \/>\n const specificClass = document.querySelector(\".myClass\"); \/\/ \".myClass\" s\u0131n\u0131f\u0131na sahip ilk \u00f6\u011feyi se\u00e7er<br \/>\n const specificElement = document.querySelector(\"#myElement\"); \/\/ \"myElement\" ID'li \u00f6\u011feyi se\u00e7er<\/p>\n<p> <\/code><\/p>\n<h3>querySelectorAll Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n<p><code>querySelectorAll()<\/code> ise, CSS se\u00e7icileri kullanarak t\u00fcm e\u015fle\u015fen DOM \u00f6\u011felerini bir NodeList olarak d\u00f6nd\u00fcr\u00fcr. NodeList, canl\u0131 bir koleksiyondur, yani DOM g\u00fcncellendi\u011finde otomatik olarak g\u00fcncellenir. \u00d6rne\u011fin:<\/p>\n<p> <code><br \/>\n const allParagraphs = document.querySelectorAll(\"p\"); \/\/ T\u00fcm paragraflar\u0131 se\u00e7er<br \/>\n allParagraphs.forEach(paragraph => {<br \/>\n paragraph.style.color = \"blue\"; \/\/ Her paragraf\u0131n rengini mavi yapar<br \/>\n });<br \/>\n <\/code><\/p>\n<p>Bu \u00f6rnekte, t\u00fcm paragraflar se\u00e7ilip renkleri de\u011fi\u015ftirilir. <code>querySelectorAll()<\/code>'in <code>forEach<\/code> d\u00f6ng\u00fcs\u00fcyle kullan\u0131lmas\u0131, birden \u00e7ok \u00f6\u011feyi etkili bir \u015fekilde i\u015flemek i\u00e7in idealdir. Performans a\u00e7\u0131s\u0131ndan, <code>querySelectorAll()<\/code>'in <code>getElementsByTagName()<\/code>'den daha verimli oldu\u011fu durumlar vard\u0131r, \u00f6zellikle karma\u015f\u0131k CSS se\u00e7iciler kullan\u0131ld\u0131\u011f\u0131nda.<\/p>\n<h2>getElementsByTagName, getElementsByClassName ve getElementsByName: \u00d6zel Y\u00f6ntemler<\/h2>\n<p>Bu y\u00f6ntemler, <code>querySelectorAll()<\/code>'e g\u00f6re daha \u00f6zelle\u015fmi\u015f se\u00e7im imkan\u0131 sunarlar. <code>getElementsByTagName()<\/code> HTML etiket ad\u0131na g\u00f6re, <code>getElementsByClassName()<\/code> s\u0131n\u0131f ad\u0131na g\u00f6re, <code>getElementsByName()<\/code> ise <code>name<\/code> \u00f6zniteli\u011fine g\u00f6re se\u00e7imler yapar. \u00d6nemli bir fark ise bu y\u00f6ntemlerin canl\u0131 koleksiyonlar d\u00f6nd\u00fcrmesidir, yani DOM g\u00fcncellendi\u011finde bu koleksiyonlar da otomatik olarak g\u00fcncellenir. Bu, performans ve kodun g\u00fcncelli\u011fini koruma a\u00e7\u0131s\u0131ndan \u00f6nemlidir. Ancak, bu canl\u0131 koleksiyonlar \u00fczerinde yap\u0131lan de\u011fi\u015fiklikler, orijinal DOM yap\u0131s\u0131nda da de\u011fi\u015fiklikler olu\u015fturur.<\/p>\n<p> <code><br \/>\n const allDivs = document.getElementsByTagName(\"div\"); \/\/ T\u00fcm div elementlerini se\u00e7er<br \/>\n const elementsWithClass = document.getElementsByClassName(\"myClass\"); \/\/ myClass s\u0131n\u0131f\u0131na sahip t\u00fcm elementleri se\u00e7er<br \/>\n const elementsWithName = document.getElementsByName(\"myName\"); \/\/ name \u00f6zniteli\u011fi myName olan t\u00fcm elementleri se\u00e7er<br \/>\n <\/code><\/p>\n<p>Bu y\u00f6ntemler, <code>querySelectorAll<\/code> ile ayn\u0131 sonucu verebilir, ancak daha spesifik ve baz\u0131 durumlarda daha h\u0131zl\u0131 olabilirler. Se\u00e7im yaparken, kullanaca\u011f\u0131n\u0131z y\u00f6ntemin performans\u0131n\u0131 ve ihtiya\u00e7lar\u0131n\u0131z\u0131 g\u00f6z \u00f6n\u00fcnde bulundurman\u0131z \u00f6nemlidir.<\/p>\n<h2>\u0130leri D\u00fczey Teknikler: Performans Optimizasyonu ve G\u00fcvenlik<\/h2>\n<h3>Performans Kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/h3>\n<p>DOM se\u00e7im y\u00f6ntemlerinin performans\u0131, se\u00e7ilen \u00f6\u011felerin say\u0131s\u0131 ve se\u00e7ici karma\u015f\u0131kl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r. Genel olarak, <code>getElementById()<\/code> en h\u0131zl\u0131 y\u00f6ntemdir, \u00e7\u00fcnk\u00fc ID'ler benzersizdir. <code>querySelector()<\/code> ve <code>querySelectorAll()<\/code>, karma\u015f\u0131k se\u00e7iciler kullan\u0131ld\u0131\u011f\u0131nda daha yava\u015f olabilir. <code>getElementsByTagName()<\/code>, <code>getElementsByClassName()<\/code> ve <code>getElementsByName()<\/code> ise, b\u00fcy\u00fck say\u0131da \u00f6\u011fe se\u00e7ildi\u011finde performans kayb\u0131na neden olabilir. A\u015fa\u011f\u0131daki tabloda, farkl\u0131 y\u00f6ntemlerin performans kar\u015f\u0131la\u015ft\u0131rmas\u0131n\u0131 g\u00f6rebilirsiniz:<\/p>\n<table>\n<thead>\n<tr>\n<th>Y\u00f6ntem<\/th>\n<th>Performans<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>getElementById()<\/code><\/td>\n<td>En h\u0131zl\u0131<\/td>\n<td>Tek, benzersiz ID'li \u00f6\u011fe se\u00e7imi i\u00e7in ideal<\/td>\n<\/tr>\n<tr>\n<td><code>querySelector()<\/code><\/td>\n<td>Orta<\/td>\n<td>\u0130lk e\u015fle\u015fen \u00f6\u011feyi se\u00e7er, karma\u015f\u0131k se\u00e7iciler yava\u015flayabilir<\/td>\n<\/tr>\n<tr>\n<td><code>querySelectorAll()<\/code><\/td>\n<td>Orta – Yava\u015f (\u00f6\u011fe say\u0131s\u0131na ba\u011fl\u0131)<\/td>\n<td>T\u00fcm e\u015fle\u015fen \u00f6\u011feleri se\u00e7er, b\u00fcy\u00fck say\u0131da \u00f6\u011fe performans\u0131 d\u00fc\u015f\u00fcrebilir<\/td>\n<\/tr>\n<tr>\n<td><code>getElementsByTagName()<\/code>, <code>getElementsByClassName()<\/code>, <code>getElementsByName()<\/code><\/td>\n<td>Yava\u015f (\u00f6\u011fe say\u0131s\u0131na ba\u011fl\u0131)<\/td>\n<td>Canl\u0131 koleksiyonlar d\u00f6nd\u00fcr\u00fcr, b\u00fcy\u00fck say\u0131da \u00f6\u011fe performans\u0131 d\u00fc\u015f\u00fcrebilir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"warning\">\n<h4>Dikkat! G\u00fcvenlik Uyar\u0131s\u0131<\/h4>\n<p>Kullan\u0131c\u0131 girdilerine dayal\u0131 DOM se\u00e7im i\u015flemlerinde XSS (Cross-Site Scripting) sald\u0131r\u0131lar\u0131na kar\u015f\u0131 dikkatli olmak \u00e7ok \u00f6nemlidir. Kullan\u0131c\u0131 girdilerini do\u011frulamadan do\u011frudan DOM se\u00e7im i\u015flemlerinde kullanmay\u0131n. G\u00fcvenli kodlama uygulamalar\u0131, g\u00fcvenli\u011finizi ve web sitenizin sa\u011fl\u0131\u011f\u0131n\u0131 koruman\u0131n anahtar\u0131d\u0131r. Daha g\u00fcvenli kodlama teknikleri hakk\u0131nda bilgi edinmek i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresini ziyaret edebilirsiniz.<\/p>\n<\/p><\/div>\n<h2>Ger\u00e7ek D\u00fcnya Senaryolar\u0131<\/h2>\n<p>Bir e-ticaret sitesinde, \u00fcr\u00fcn listesinin dinamik olarak g\u00fcncellenmesi i\u00e7in <code>querySelectorAll()<\/code> kullan\u0131labilir. Kullan\u0131c\u0131 bir filtre uygulad\u0131\u011f\u0131nda, <code>querySelectorAll()<\/code> ile ilgili \u00fcr\u00fcnler se\u00e7ilip g\u00f6sterilebilir. Bir blog sitesinde, yorumlar\u0131n g\u00f6r\u00fcnt\u00fclenmesi i\u00e7in <code>getElementsByClassName()<\/code> kullan\u0131labilir. Yeni yorumlar eklendi\u011finde, <code>getElementsByClassName()<\/code> ile yorum b\u00f6l\u00fcm\u00fc dinamik olarak g\u00fcncellenebilir. Bu \u00f6rnekler, DOM se\u00e7im y\u00f6ntemlerinin ger\u00e7ek d\u00fcnya uygulamalar\u0131nda ne kadar \u00f6nemli oldu\u011funu g\u00f6stermektedir.<\/p>\n<h2>\u00d6\u011frenme Yol Haritas\u0131<\/h2>\n<ul>\n<li><strong>Yeni Ba\u015flayan:<\/strong> <code>getElementById()<\/code>, <code>getElementsByTagName()<\/code>, basit <code>querySelector()<\/code> kullan\u0131mlar\u0131 ile ba\u015flayabilirsiniz.<\/li>\n<li><strong>Orta Seviye:<\/strong> <code>querySelectorAll()<\/code> ile birden \u00e7ok \u00f6\u011fe se\u00e7imi, CSS se\u00e7icilerini daha detayl\u0131 \u00f6\u011frenme ve <code>forEach<\/code> d\u00f6ng\u00fcs\u00fc ile birlikte kullanma.<\/li>\n<li><strong>\u0130leri Seviye:<\/strong> Performans optimizasyonu teknikleri, karma\u015f\u0131k CSS se\u00e7icileri, canl\u0131 koleksiyonlar ve performans sorunlar\u0131 ile ba\u015fa \u00e7\u0131kma stratejileri.<\/li>\n<\/ul>\n<h2>Sonu\u00e7<\/h2>\n<p>JavaScript DOM se\u00e7im y\u00f6ntemleri, web geli\u015ftirmede hayati \u00f6neme sahiptir. Do\u011fru y\u00f6ntemleri se\u00e7mek, kodunuzun performans\u0131n\u0131 ve okunabilirli\u011fini art\u0131r\u0131r. Bu makalede, en yayg\u0131n DOM se\u00e7im y\u00f6ntemlerini ve bunlar\u0131n nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 \u00f6\u011frendik. Uygulama yaparak ve farkl\u0131 y\u00f6ntemleri deneyerek, DOM manip\u00fclasyonunda uzmanla\u015fabilirsiniz.<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular<\/h3>\n<ul>\n<li><strong>Soru:<\/strong> <code>querySelector()<\/code> ve <code>querySelectorAll()<\/code> aras\u0131nda ne fark var?<\/li>\n<li><strong>Cevap:<\/strong> <code>querySelector()<\/code> ilk e\u015fle\u015feni d\u00f6nd\u00fcr\u00fcrken, <code>querySelectorAll()<\/code> t\u00fcm e\u015fle\u015fenleri bir NodeList olarak d\u00f6nd\u00fcr\u00fcr.<\/li>\n<li><strong>Soru:<\/strong> Canl\u0131 koleksiyonlar nedir ve neden \u00f6nemlidir?<\/li>\n<li><strong>Cevap:<\/strong> Canl\u0131 koleksiyonlar, DOM g\u00fcncellendi\u011finde otomatik olarak g\u00fcncellenen koleksiyonlard\u0131r. Bu, kodun g\u00fcncelli\u011fini korumas\u0131 i\u00e7in \u00f6nemlidir.<\/li>\n<li><strong>Soru:<\/strong> Hangi y\u00f6ntem en h\u0131zl\u0131d\u0131r?<\/li>\n<li><strong>Cevap:<\/strong> Genellikle <code>getElementById()<\/code> en h\u0131zl\u0131 y\u00f6ntemdir.<\/li>\n<li><strong>Soru:<\/strong> Performans\u0131 nas\u0131l optimize edebilirim?<\/li>\n<li><strong>Cevap:<\/strong> Gereksiz DOM i\u015flemlerinden ka\u00e7\u0131narak, do\u011fru se\u00e7iciyi kullanarak ve b\u00fcy\u00fck DOM i\u015flemlerini k\u00fc\u00e7\u00fck par\u00e7alara b\u00f6lerek performans\u0131 optimize edebilirsiniz.<\/li>\n<\/ul>\n<p>Yazar: Fatih Soysal<\/p>\n<p><\/body><br \/>\n<\/html><\/pre>\n<p><\/code><\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript DOM Se\u00e7im Y\u00f6ntemleri JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek…","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-28553","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n<title>JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak<\/title>\n<meta name=\"description\" content=\"Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. Bu makalede, JavaScript'in g\u00fc\u00e7l\u00fc DOM se\u00e7im y\u00f6ntemlerini ad\u0131m ad\u0131m inceleyece\u011fiz ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirece\u011fiz.\" \/>\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\/javascript-dom-secim-yontemlerini-anlamak\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak\" \/>\n<meta property=\"og:description\" content=\"Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. Ancak, DOM'daki belirli \u00f6\u011felere eri\u015fmek ve bunlar\u0131 manip\u00fcle etmek i\u00e7in do\u011fru y\u00f6ntemleri bilmek, geli\u015ftirme s\u00fcrecinizin verimlili\u011fini ve kodunuzun kalitesini do\u011frudan etkiler. Bu makalede, JavaScript'in g\u00fc\u00e7l\u00fc DOM se\u00e7im y\u00f6ntemlerini ad\u0131m ad\u0131m inceleyece\u011fiz ve ger\u00e7ek d\u00fcnya senaryolar\u0131yla peki\u015ftirece\u011fiz.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-01T05:00:26+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=\"7 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak\",\"datePublished\":\"2025-09-01T05:00:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/\"},\"wordCount\":1247,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/javascript-dom-secim-yontemlerini-anlamak\/\",\"name\":\"JavaScript DOM Se\u00e7im Y\u00f6ntemlerini Anlamak\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-09-01T05:00:26+00:00\",\"description\":\"Web geli\u015ftirmede, dinamik i\u00e7erik olu\u015fturmak ve kullan\u0131c\u0131 etkile\u015fimini y\u00f6netmek i\u00e7in JavaScript'in Document Object Model (DOM) ile etkile\u015fime girmesi \u015fartt\u0131r. 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