{"id":7722,"date":"2024-12-26T10:00:13","date_gmt":"2024-12-26T07:00:13","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/"},"modified":"2024-12-26T10:00:13","modified_gmt":"2024-12-26T07:00:13","slug":"javascriptte-noktali-virgul-kullanimi-ve-onemi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/","title":{"rendered":"JavaScript&#8217;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi"},"content":{"rendered":"<p><body><\/p>\n<p>JavaScript&#8217;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi<\/p>\n<p>Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131 virg\u00fcllerin kullan\u0131m\u0131na \u0131\u015f\u0131k tutmak i\u00e7in buraday\u0131m.  Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript&#8217;te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz.  Ayn\u0131 zamanda baz\u0131 yayg\u0131n yanl\u0131\u015f anlamalar\u0131 da ortadan kald\u0131raca\u011f\u0131z.<\/p>\n<h2>Noktal\u0131 Virg\u00fcl: Gerekli mi, De\u011fil mi?<\/h2>\n<p>\u00d6ncelikle, \u015funu a\u00e7\u0131kl\u0131\u011fa kavu\u015ftural\u0131m: JavaScript, noktal\u0131 virg\u00fclleri <em>zorunlu<\/em> k\u0131lmaz.  Ancak bu, kullan\u0131lmamas\u0131 gerekti\u011fi anlam\u0131na gelmez.  JavaScript yorumlay\u0131c\u0131s\u0131, \u00e7o\u011fu durumda noktal\u0131 virg\u00fclleri otomatik olarak ekler (Automatic Semicolon Insertion &#8211; ASI).  Bununla birlikte, ASI her zaman beklenmedik sonu\u00e7lara yol a\u00e7abilir ve bu da hatalara neden olabilir.  Dolay\u0131s\u0131yla, kodunuzun okunabilirli\u011fini ve g\u00fcvenilirli\u011fini sa\u011flamak i\u00e7in noktal\u0131 virg\u00fclleri a\u00e7\u0131k\u00e7a kullanman\u0131z \u00f6nerilir.<\/p>\n<p>\u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod par\u00e7as\u0131nda noktal\u0131 virg\u00fcl eksikli\u011fi beklenmedik bir davran\u0131\u015fa neden olabilir:<\/p>\n<pre><code>\nfunction benimFonksiyonum() {\nreturn\n{\n  deger: \"Merhaba\"\n}\n}\nconsole.log(benimFonksiyonum()); \/\/ undefined d\u00f6nd\u00fcr\u00fcr\n<\/code><\/pre>\n<p>Burada, return ifadesinden sonra noktal\u0131 virg\u00fcl eksikli\u011fi nedeniyle, return ifadesinin ard\u0131ndan gelen nesne, bir fonksiyon \u00e7a\u011fr\u0131s\u0131 olarak de\u011fil,  return ile birle\u015ftirilmi\u015f bir ifade olarak yorumlan\u0131r ve sonu\u00e7 olarak undefined d\u00f6nd\u00fcr\u00fcl\u00fcr.  Noktal\u0131 virg\u00fcl eklendi\u011finde ise, fonksiyon do\u011fru \u015fekilde \u00e7al\u0131\u015f\u0131r ve beklenen sonucu verir.<\/p>\n<pre><code>\nfunction benimFonksiyonum() {\nreturn; \/\/ noktal\u0131 virg\u00fcl eklendi\n{\n  deger: \"Merhaba\"\n}\n}\nconsole.log(benimFonksiyonum()); \/\/ undefined d\u00f6nd\u00fcr\u00fcr\n\nfunction benimFonksiyonum2() {\nreturn { deger: \"Merhaba\" }; \/\/ noktal\u0131 virg\u00fcl eklendi\n}\nconsole.log(benimFonksiyonum2()); \/\/ {deger: \"Merhaba\"} d\u00f6nd\u00fcr\u00fcr\n<\/code><\/pre>\n<h2>Performans Etkisi<\/h2>\n<p>Baz\u0131 geli\u015ftiriciler, noktal\u0131 virg\u00fcllerin performans\u0131 etkiledi\u011fini d\u00fc\u015f\u00fcn\u00fcr.  Ancak, modern JavaScript motorlar\u0131, noktal\u0131 virg\u00fcllerin eklenmesi veya atlanmas\u0131 nedeniyle performans fark\u0131n\u0131 neredeyse hissedilemeyecek kadar azaltm\u0131\u015ft\u0131r.  Dolay\u0131s\u0131yla, performans kayg\u0131s\u0131yla noktal\u0131 virg\u00fcl kullan\u0131m\u0131n\u0131 atlaman\u0131z gerekmez.  As\u0131l odak noktan\u0131z, kodunuzun okunabilirli\u011fi ve bak\u0131m kolayl\u0131\u011f\u0131 olmal\u0131d\u0131r.<\/p>\n<h2>En \u0130yi Uygulamalar<\/h2>\n<p>Kodunuzun okunabilirli\u011fini ve bak\u0131m\u0131n\u0131 kolayla\u015ft\u0131rmak i\u00e7in noktal\u0131 virg\u00fclleri tutarl\u0131 bir \u015fekilde kullanman\u0131z \u00f6nerilir.  Bunu yapman\u0131n en basit yolu, her ifadeyi noktal\u0131 virg\u00fcl ile sonland\u0131rmakt\u0131r.  Bu, olas\u0131 hatalar\u0131 \u00f6nler ve kodunuzun daha anla\u015f\u0131l\u0131r olmas\u0131n\u0131 sa\u011flar.  \u00d6zellikle b\u00fcy\u00fck projelerde veya ekip \u00e7al\u0131\u015fmas\u0131 yap\u0131lan durumlarda tutarl\u0131l\u0131k \u00e7ok \u00f6nemlidir.<\/p>\n<p>Sonu\u00e7 olarak, noktal\u0131 virg\u00fclleri kullanmak,  kodunuzun g\u00fcvenilirli\u011fini ve okunabilirli\u011fini art\u0131r\u0131r ve  beklenmedik davran\u0131\u015flar\u0131 \u00f6nler.  Performans etkisi ise ihmal edilebilir d\u00fczeydedir.  Bu nedenle,  daha temiz, daha g\u00fcvenilir ve daha anla\u015f\u0131l\u0131r bir kod yazmak i\u00e7in noktal\u0131 virg\u00fclleri kullanmay\u0131 al\u0131\u015fkanl\u0131k haline getirmenizi \u015fiddetle tavsiye ederim.  Daha fazla JavaScript geli\u015ftirme ipucu ve \u00f6\u011fretici i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">web sitemi<\/a> ziyaret edebilirsiniz.<\/p>\n<p>Ayr\u0131ca, konuyla ilgili daha fazla bilgi i\u00e7in a\u015fa\u011f\u0131daki kaynaklara da g\u00f6z atabilirsiniz:<\/p>\n<ul>\n<li><a href=\"https:\/\/dev.to\/avinashd10\/js-in-bits-2semicolon-536a\">Orijinal \u0130ngilizce Makale<\/a><\/li>\n<li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Statements\/automatic_semicolon_insertion\">Mozilla Developer Network &#8211; Automatic Semicolon Insertion<\/a><\/li>\n<\/ul>\n<p>#Etiketler: javascript, noktal\u0131 virg\u00fcl, semicolon, javascript performans\u0131, javascript best practices, kodlama, programlama,  ASI, Automatic Semicolon Insertion<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript&#8217;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131&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-7722","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>JavaScript&#039;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi<\/title>\n<meta name=\"description\" content=\"Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131 virg\u00fcllerin kullan\u0131m\u0131na \u0131\u015f\u0131k tutmak i\u00e7in buraday\u0131m. Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript&#039;te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. Ayn\u0131 zamanda baz\u0131 yayg\u0131n yanl\u0131\u015f anlamalar\u0131 da ortadan kald\u0131raca\u011f\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\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript&#039;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131 virg\u00fcllerin kullan\u0131m\u0131na \u0131\u015f\u0131k tutmak i\u00e7in buraday\u0131m. Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript&#039;te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. Ayn\u0131 zamanda baz\u0131 yayg\u0131n yanl\u0131\u015f anlamalar\u0131 da ortadan kald\u0131raca\u011f\u0131z.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2024-12-26T07:00:13+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=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"JavaScript&#8217;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi\",\"datePublished\":\"2024-12-26T07:00:13+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\"},\"wordCount\":503,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/#respond\"]}],\"copyrightYear\":\"2024\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/\",\"name\":\"JavaScript'te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2024-12-26T07:00:13+00:00\",\"description\":\"Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131 virg\u00fcllerin kullan\u0131m\u0131na \u0131\u015f\u0131k tutmak i\u00e7in buraday\u0131m. Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript'te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. 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Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript'te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. Ayn\u0131 zamanda baz\u0131 yayg\u0131n yanl\u0131\u015f anlamalar\u0131 da ortadan kald\u0131raca\u011f\u0131z.","og_url":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/","og_site_name":"Kodlar\u0131n Gizemli D\u00fcnyas\u0131","article_published_time":"2024-12-26T07:00:13+00:00","author":"Fatih Soysal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Fatih Soysal","Tahmini okuma s\u00fcresi":"3 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/#article","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/"},"author":{"name":"Fatih Soysal","@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"headline":"JavaScript&#8217;te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi","datePublished":"2024-12-26T07:00:13+00:00","mainEntityOfPage":{"@id":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/"},"wordCount":503,"commentCount":0,"publisher":{"@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/#respond"]}],"copyrightYear":"2024","copyrightHolder":{"@id":"https:\/\/fatihsoysal.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/","url":"https:\/\/fatihsoysal.com\/blog\/javascriptte-noktali-virgul-kullanimi-ve-onemi\/","name":"JavaScript'te Noktal\u0131 Virg\u00fcl (;): Kullan\u0131m\u0131 ve \u00d6nemi","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/#website"},"datePublished":"2024-12-26T07:00:13+00:00","description":"Merhaba! Fatih Soysal olarak, JavaScript d\u00fcnyas\u0131nda s\u0131k\u00e7a tart\u0131\u015f\u0131lan bir konuya, noktal\u0131 virg\u00fcllerin kullan\u0131m\u0131na \u0131\u015f\u0131k tutmak i\u00e7in buraday\u0131m. Bu makalede, noktal\u0131 virg\u00fcllerin JavaScript'te nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli olduklar\u0131n\u0131 ve \u00f6zellikle performans a\u00e7\u0131s\u0131ndan etkilerini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. 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