JavaScript, esnek yap\u0131s\u0131 ve dinamik do\u011fas\u0131yla modern web geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. Geli\u015ftiricilere sundu\u011fu \u00e7ok y\u00f6nl\u00fc paradigmalardan biri de fonksiyonel programlamad\u0131r. Bu makalede, fonksiyonel programlaman\u0131n kalbinde yer alan ve kodumuzu daha okunabilir, mod\u00fcler ve s\u00fcrd\u00fcr\u00fclebilir hale getiren g\u00fc\u00e7l\u00fc bir teknik olan “fonksiyon kompozisyonunu” derinlemesine inceleyece\u011fiz. JavaScript’in gizli potansiyelini ortaya \u00e7\u0131karan bu yakla\u015f\u0131m, karma\u015f\u0131k problemleri basit, birle\u015ftirilebilir par\u00e7alara ay\u0131rmam\u0131z\u0131 sa\u011flar.<\/p>\n
Fonksiyonel programlama (FP), hesaplamay\u0131 matematiksel fonksiyonlar\u0131n de\u011ferlendirilmesi olarak ele alan bir programlama paradigmas\u0131d\u0131r. Durum de\u011fi\u015fikliklerinden ve yan etkilerden ka\u00e7\u0131narak, daha \u00f6ng\u00f6r\u00fclebilir ve test edilebilir kod yazmay\u0131 hedefler. JavaScript, birinci s\u0131n\u0131f fonksiyonlara sahip olmas\u0131 sayesinde fonksiyonel programlama prensiplerini uygulamak i\u00e7in m\u00fckemmel bir ortam sunar.<\/p>\n
Saf fonksiyonlar, fonksiyonel programlaman\u0131n temel yap\u0131 ta\u015flar\u0131d\u0131r. Ayn\u0131 girdiler i\u00e7in her zaman ayn\u0131 \u00e7\u0131kt\u0131y\u0131 \u00fcretirler ve d\u0131\u015f d\u00fcnyada herhangi bir yan etki yaratmazlar (global de\u011fi\u015fkenleri de\u011fi\u015ftirmek gibi). Bu \u00f6zellik, kodun g\u00fcvenilirli\u011fini ve test edilebilirli\u011fini art\u0131r\u0131r.<\/p>\n
\n\/\/ Saf Fonksiyon \u00d6rne\u011fi\nconst toUpperCase = str => str.toUpperCase();\nconst addExclamation = str => str + '!';\n<\/pre>\n<\/code><\/p>\n
De\u011fi\u015fmezlik (Immutability)<\/h4>\n
De\u011fi\u015fmezlik, bir veri yap\u0131s\u0131 olu\u015fturulduktan sonra de\u011fi\u015ftirilememesi anlam\u0131na gelir. Fonksiyonel programlamada, mevcut verileri de\u011fi\u015ftirmek yerine, her zaman verinin yeni bir kopyas\u0131n\u0131 olu\u015ftururuz. Bu, beklenmedik durum de\u011fi\u015fikliklerini \u00f6nler ve kodun anla\u015f\u0131lmas\u0131n\u0131 kolayla\u015ft\u0131r\u0131r.<\/p>\n
\n\/\/ De\u011fi\u015fmezlik prensibine uygun
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Geli\u015ftiricilere sundu\u011fu \u00e7ok y\u00f6nl\u00fc paradigmalard…","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":[129],"tags":[],"class_list":{"0":"post-36585","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-javascript","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nJavaScript'in Gizli Ya\u015fam\u0131: Fonksiyon Kompozisyonunun G\u00fcc\u00fc - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\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\/javascriptin-gizli-yasami-fonksiyon-kompozisyonunun-gucu\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JavaScript'in Gizli Ya\u015fam\u0131: Fonksiyon Kompozisyonunun G\u00fcc\u00fc\" \/>\n<meta property=\"og:description\" content=\"JavaScript, esnek yap\u0131s\u0131 ve dinamik do\u011fas\u0131yla modern web geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. 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