{"id":46873,"date":"2025-10-13T09:27:00","date_gmt":"2025-10-13T06:27:00","guid":{"rendered":"https:\/\/goit.global\/?post_type=articles&#038;p=46873"},"modified":"2025-12-08T09:29:05","modified_gmt":"2025-12-08T07:29:05","slug":"asenkron-programlama-nedir-javascript-te-async-await-kullanimi","status":"publish","type":"articles","link":"https:\/\/goit.global\/tr\/articles\/asenkron-programlama-nedir-javascript-te-async-await-kullanimi\/","title":{"rendered":"Asenkron Programlama Nedir? JavaScript&#8217;te Async\/Await Kullan\u0131m\u0131"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">G\u00fcn\u00fcm\u00fcz web uygulamalar\u0131nda kullan\u0131c\u0131 deneyimi her \u015feyden \u00f6nemlidir. Ara\u015ft\u0131rmalar, web sitesi d\u00f6n\u00fc\u015f\u00fcm oranlar\u0131n\u0131n sayfa y\u00fckleme s\u00fcresindeki her ek saniyede ortalama %4,42 d\u00fc\u015ft\u00fc\u011f\u00fcn\u00fc <a href=\"https:\/\/www.kullanicideneyimi.org.tr\/sayfa-yukleme-suresi\" target=\"_blank\" rel=\"noopener\">g\u00f6steriyor<\/a>. Bir e-ticaret sitesinde \u00fcr\u00fcnleri g\u00f6r\u00fcnt\u00fclerken, hava durumu uygulamas\u0131nda anl\u0131k verileri al\u0131rken veya sosyal medyada g\u00f6nderi payla\u015f\u0131rken, hi\u00e7bir kullan\u0131c\u0131 ekran\u0131n donmas\u0131n\u0131 beklemek istemez. Modern web geli\u015ftirmenin temel ta\u015flar\u0131ndan biri olan asenkron programlama, i\u015fte tam da bu soruna \u00e7\u00f6z\u00fcm sunar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bir API&#8217;den veri almak, sunucuya bilgi g\u00f6ndermek veya b\u00fcy\u00fck bir dosyay\u0131 y\u00fcklemek gibi i\u015flemler zaman alabilir. Geleneksel programlama yakla\u015f\u0131mlar\u0131nda bu i\u015flemler tamamlanana kadar t\u00fcm uygulaman\u0131n beklemesi gerekir. Ancak asenkron programlama sayesinde, uzun s\u00fcren i\u015flemler arka planda devam ederken kullan\u0131c\u0131 aray\u00fcz\u00fc yan\u0131t vermeye devam eder ve kullan\u0131c\u0131 ba\u015fka i\u015flemler yapabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu yaz\u0131da, asenkron programlaman\u0131n ne oldu\u011funu, neden bu kadar \u00f6nemli oldu\u011funu ve <a href=\"https:\/\/goit.global\/tr\/articles\/javaccript-nedir-nasil-ogrenilir-web-gelistirmenin-vazgecilmez-dili\/\">JavaScript<\/a>&#8216;te nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 s\u0131f\u0131rdan \u00f6\u011freneceksiniz. Callback fonksiyonlar\u0131ndan Promise yap\u0131s\u0131na, oradan da modern async\/await s\u00f6z dizimine kadar t\u00fcm yolculu\u011fu ad\u0131m ad\u0131m ke\u015ffedece\u011fiz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Asenkron Programlama Nedir?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama, modern yaz\u0131l\u0131m geli\u015ftirmenin vazge\u00e7ilmez par\u00e7alar\u0131ndan biridir. Peki tam olarak ne anlama gelir ve neden bu kadar \u00f6nemlidir? Gelin birlikte inceleyelim.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Temel Tan\u0131m<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama, birden fazla i\u015flemin e\u015f zamanl\u0131 olarak y\u00fcr\u00fct\u00fclmesini sa\u011flayan bir programlama modelidir. Bu modelde, bir i\u015flem tamamlanana kadar beklemek yerine, i\u015flem arka planda devam ederken program ak\u0131\u015f\u0131 di\u011fer i\u015flemlere ge\u00e7er. B\u00f6ylece ana i\u015f par\u00e7ac\u0131\u011f\u0131 hi\u00e7bir zaman bloke olmaz ve uygulama her zaman yan\u0131t verebilir durumda kal\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlaman\u0131n temelinde \u015fu prensip yatar: \u0130\u015flemler birbirinden ba\u011f\u0131ms\u0131z \u00e7al\u0131\u015fabilir ve bir i\u015flemin sonucunu beklerken di\u011fer i\u015flemler devam edebilir. Bu yakla\u015f\u0131m, \u00f6zellikle a\u011f istekleri, dosya okuma-yazma veya veritaban\u0131 sorgular\u0131 gibi giri\u015f\/\u00e7\u0131k\u0131\u015f i\u015flemlerinde b\u00fcy\u00fck performans kazan\u00e7lar\u0131 sa\u011flar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>G\u00fcnl\u00fck Hayattan \u00d6rnekler<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlamay\u0131 anlaman\u0131n en kolay yolu, g\u00fcnl\u00fck hayattan \u00f6rneklerle d\u00fc\u015f\u00fcnmektir. Bir restoran d\u00fc\u015f\u00fcn\u00fcn: Garson bir masan\u0131n sipari\u015fini ald\u0131ktan sonra, yemeklerin haz\u0131rlanmas\u0131n\u0131 beklemek yerine di\u011fer masalara ge\u00e7er ve onlar\u0131n da sipari\u015flerini al\u0131r. Mutfak t\u00fcm sipari\u015fleri ayn\u0131 anda haz\u0131rlamaya \u00e7al\u0131\u015f\u0131r ve her yemek haz\u0131r oldu\u011funda ilgili masaya servis edilir. E\u011fer garson her sipari\u015fin haz\u0131rlanmas\u0131n\u0131 bekleseydi, restoran\u0131n verimlili\u011fi \u00e7ok d\u00fc\u015f\u00fck olurdu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ba\u015fka bir \u00f6rnek \u00e7ama\u015f\u0131r makinesidir. \u00c7ama\u015f\u0131rlar\u0131 makineye koyup ba\u015flatt\u0131\u011f\u0131n\u0131zda, makinenin \u00e7al\u0131\u015fmas\u0131 bitene kadar orada beklemezsiniz. \u00c7ama\u015f\u0131r makinesi \u00e7al\u0131\u015f\u0131rken siz bula\u015f\u0131klar\u0131 y\u0131kayabilir, evi s\u00fcp\u00fcrebilir veya ba\u015fka i\u015flerle ilgilenebilirsiniz. Makine i\u015fini bitirdi\u011finde size sinyal verir ve siz de \u00e7ama\u015f\u0131rlar\u0131 \u00e7\u0131kar\u0131rs\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ayn\u0131 \u015fekilde telefonda birisiyle konu\u015furken ayn\u0131 anda e-postalar\u0131n\u0131z\u0131 kontrol edebilir veya notlar alabilirsiniz. \u0130\u015fte asenkron programlama da tam olarak bu mant\u0131kla \u00e7al\u0131\u015f\u0131r: Bir i\u015flem devam ederken di\u011fer i\u015flere odaklanabilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Senkron ve Asenkron Programlama Aras\u0131ndaki Farklar<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlamay\u0131 tam olarak anlamak i\u00e7in, \u00f6nce senkron programlaman\u0131n ne oldu\u011funu ve bu iki yakla\u015f\u0131m\u0131n nas\u0131l farkl\u0131la\u015ft\u0131\u011f\u0131n\u0131 incelemek gerekir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Senkron (E\u015fzamanl\u0131) Programlama<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Senkron programlama, i\u015flemlerin s\u0131rayla ve birer birer ger\u00e7ekle\u015ftirildi\u011fi geleneksel programlama yakla\u015f\u0131m\u0131d\u0131r. Bu modelde, bir i\u015flem tamamen bitmeden di\u011fer i\u015fleme ge\u00e7ilmez. Kod sat\u0131rlar\u0131 yukar\u0131dan a\u015fa\u011f\u0131ya do\u011fru s\u0131rayla \u00e7al\u0131\u015f\u0131r ve her sat\u0131r bir \u00f6ncekinin tamamlanmas\u0131n\u0131 bekler.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6rne\u011fin, bir dosyay\u0131 okumak istedi\u011finizde, dosya tamamen okunup belle\u011fe y\u00fcklenene kadar program\u0131n geri kalan\u0131 bekler. Bu s\u00fcre zarf\u0131nda program hi\u00e7bir \u015fey yapamaz, kullan\u0131c\u0131 aray\u00fcz\u00fc donmu\u015f gibi g\u00f6r\u00fcn\u00fcr ve kullan\u0131c\u0131 ba\u015fka i\u015flem yapamaz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Senkron programlaman\u0131n en b\u00fcy\u00fck avantaj\u0131 basitli\u011fi ve anla\u015f\u0131l\u0131rl\u0131\u011f\u0131d\u0131r. Kodun ak\u0131\u015f\u0131n\u0131 takip etmek kolayd\u0131r \u00e7\u00fcnk\u00fc her \u015fey ad\u0131m ad\u0131m ilerler. Ancak bu yakla\u015f\u0131m\u0131n ciddi dezavantajlar\u0131 vard\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kullan\u0131c\u0131 aray\u00fcz\u00fc donmu\u015f gibi g\u00f6r\u00fcn\u00fcr<\/li>\n\n\n\n<li>Sistem kaynaklar\u0131 verimli kullan\u0131lamaz<\/li>\n\n\n\n<li>\u00c7ok kullan\u0131c\u0131l\u0131 uygulamalarda \u00f6l\u00e7eklenebilirlik sorunu olu\u015fur<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Asenkron (E\u015fzamans\u0131z) Programlama<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlamada ise i\u015flemler paralel olarak y\u00fcr\u00fct\u00fcl\u00fcr. Bir i\u015flemin sonucu beklenirken, program di\u011fer i\u015flemlere devam eder. Bu sayede uzun s\u00fcren i\u015flemler uygulaman\u0131n geri kalan\u0131n\u0131 bloke etmez.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlaman\u0131n temel avantajlar\u0131:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Y\u00fcksek performans:<\/strong> Bekleme s\u00fcreleri ba\u015fka i\u015fler i\u00e7in de\u011ferlendirilir<\/li>\n\n\n\n<li><strong>Duyarl\u0131 kullan\u0131c\u0131 aray\u00fcz\u00fc:<\/strong> Uygulama her zaman yan\u0131t verir<\/li>\n\n\n\n<li><strong>Kaynak verimlili\u011fi:<\/strong> \u0130\u015flemci bo\u015fta beklemek yerine \u00e7al\u0131\u015f\u0131r<\/li>\n\n\n\n<li><strong>\u00d6l\u00e7eklenebilirlik:<\/strong> Daha az kaynakla daha fazla kullan\u0131c\u0131ya hizmet verilir<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Dezavantajlar\u0131 ise \u015funlard\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Kod yap\u0131s\u0131 daha karma\u015f\u0131k hale gelebilir<\/li>\n\n\n\n<li>Hata y\u00f6netimi dikkat gerektirir<\/li>\n\n\n\n<li>\u00d6\u011frenme e\u011frisi daha y\u00fcksektir<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>G\u00f6rsel Kar\u015f\u0131la\u015ft\u0131rma<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Senkron ve asenkron programlama aras\u0131ndaki fark\u0131 \u015f\u00f6yle g\u00f6sterebiliriz:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Senkron Yakla\u015f\u0131m:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015flem 1 \u2192 \u0130\u015flem 2 \u2192 \u0130\u015flem 3 (s\u0131ral\u0131, her biri bir \u00f6ncekini bekler)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Asenkron Yakla\u015f\u0131m:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015flem 1 \u2937<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015flem 2 \u2937 (paralel, birbirini beklemeden \u00e7al\u0131\u015f\u0131r)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015flem 3 \u2937<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu g\u00f6rsel fark, uygulamalar\u0131n performans\u0131nda b\u00fcy\u00fck etki yarat\u0131r. \u00d6zellikle a\u011f istekleri veya veritaban\u0131 sorgular\u0131 gibi giri\u015f\/\u00e7\u0131k\u0131\u015f yo\u011fun i\u015flemlerde asenkron yakla\u015f\u0131m \u00e7ok daha verimlidir.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Asenkron Programlaman\u0131n Kullan\u0131m Alanlar\u0131<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama g\u00fcn\u00fcm\u00fcz yaz\u0131l\u0131m geli\u015ftirmede pek \u00e7ok alanda kritik bir rol oynar. Bu b\u00f6l\u00fcmde, asenkron programlaman\u0131n en yayg\u0131n kullan\u0131ld\u0131\u011f\u0131 senaryolar\u0131 detayl\u0131ca inceleyece\u011fiz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Web Uygulamalar\u0131 ve API Entegrasyonlar\u0131<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Modern web uygulamalar\u0131n\u0131n neredeyse tamam\u0131 asenkron programlamaya dayan\u0131r. Bir e-ticaret sitesinde \u00fcr\u00fcn listesini g\u00f6r\u00fcnt\u00fclerken, sunucudan veri \u00e7ekilir ancak sayfa donmaz. Kullan\u0131c\u0131 kategoriler aras\u0131nda gezinebilir, filtreleri de\u011fi\u015ftirebilir ve arama yapabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">API \u00e7a\u011fr\u0131lar\u0131 asenkron programlaman\u0131n en yayg\u0131n kullan\u0131m alan\u0131d\u0131r. Bir hava durumu uygulamas\u0131 d\u00fc\u015f\u00fcn\u00fcn: Uygulama a\u00e7\u0131ld\u0131\u011f\u0131nda konum bilgisi al\u0131n\u0131r, ard\u0131ndan bu konum i\u00e7in hava durumu API&#8217;sine istek at\u0131l\u0131r. T\u00fcm bu i\u015flemler ger\u00e7ekle\u015firken kullan\u0131c\u0131 y\u00fckleme g\u00f6stergesi g\u00f6r\u00fcr ancak uygulama yan\u0131t vermeye devam eder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Veritaban\u0131 i\u015flemleri de asenkron olarak ger\u00e7ekle\u015ftirilir. Bir kullan\u0131c\u0131n\u0131n profil bilgilerini g\u00fcncellerken, bu i\u015flem arka planda devam ederken kullan\u0131c\u0131 uygulaman\u0131n ba\u015fka b\u00f6l\u00fcmlerini kullanabilir. Ayn\u0131 \u015fekilde, b\u00fcy\u00fck dosyalar\u0131n y\u00fcklenmesi de asenkron olarak yap\u0131l\u0131r ki kullan\u0131c\u0131 y\u00fckleme devam ederken ba\u015fka i\u015flemlerle ilgilenebilsin.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kullan\u0131c\u0131 Aray\u00fcz\u00fc ve Etkile\u015fimler<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kullan\u0131c\u0131 aray\u00fcz\u00fcn\u00fcn ak\u0131c\u0131 \u00e7al\u0131\u015fmas\u0131 i\u00e7in asenkron programlama \u015fartt\u0131r. Sayfa yenilenmeden veri g\u00fcncelleme i\u015flemleri, modern web uygulamalar\u0131n\u0131n temel \u00f6zelli\u011fidir. AJAX teknolojisi sayesinde, sayfan\u0131n sadece de\u011fi\u015fmesi gereken k\u0131sm\u0131 g\u00fcncellenir ve kullan\u0131c\u0131 deneyimi kesintisiz devam eder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Animasyonlar da asenkron \u00e7al\u0131\u015f\u0131r. Bir men\u00fc a\u00e7\u0131l\u0131rken, arka planda ba\u015fka i\u015flemler devam eder. Sosyal medya uygulamalar\u0131ndaki sonsuz kayd\u0131rma \u00f6zelli\u011fi, kullan\u0131c\u0131 a\u015fa\u011f\u0131 kayd\u0131rd\u0131k\u00e7a yeni i\u00e7eriklerin asenkron olarak y\u00fcklenmesine dayan\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Form do\u011frulama i\u015flemleri art\u0131k ger\u00e7ek zamanl\u0131 ve asenkron olarak yap\u0131l\u0131r. Kullan\u0131c\u0131 bir kullan\u0131c\u0131 ad\u0131 girerken, o kullan\u0131c\u0131 ad\u0131n\u0131n sistemde kay\u0131tl\u0131 olup olmad\u0131\u011f\u0131 arka planda kontrol edilir ve an\u0131nda geribildirim verilir. T\u00fcm bunlar, kullan\u0131c\u0131n\u0131n form doldurmaya devam etmesini engellemeden ger\u00e7ekle\u015fir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Sunucu Taraf\u0131 Uygulamalar<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Node.js&#8217;in pop\u00fclaritesinin arkas\u0131ndaki en b\u00fcy\u00fck neden, asenkron mimarisidir. Node.js, binlerce e\u015fzamanl\u0131 ba\u011flant\u0131y\u0131 minimal kaynak kullan\u0131m\u0131yla y\u00f6netebilir. Geleneksel sunucu teknolojilerinde her ba\u011flant\u0131 i\u00e7in yeni bir i\u015f par\u00e7ac\u0131\u011f\u0131 olu\u015fturulurken, Node.js tek bir i\u015f par\u00e7ac\u0131\u011f\u0131nda asenkron olarak t\u00fcm istekleri kar\u015f\u0131lar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mikroservis mimarisinde servisler aras\u0131 ileti\u015fim genellikle asenkron olarak ger\u00e7ekle\u015fir. Bir servis di\u011ferine istek att\u0131\u011f\u0131nda yan\u0131t beklemek yerine, yan\u0131t geldi\u011finde tetiklenecek bir mekanizma kurulur. Bu sayede sistemin \u00f6l\u00e7eklenebilirli\u011fi artar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Olay tabanl\u0131 sistemler ve kuyruk y\u00f6netimi de asenkron programlaman\u0131n \u00f6nemli kullan\u0131m alanlar\u0131d\u0131r. Bir e-posta g\u00f6nderme sistemi d\u00fc\u015f\u00fcn\u00fcn: Kullan\u0131c\u0131 e-posta g\u00f6nder butonuna bast\u0131\u011f\u0131nda, e-posta hemen g\u00f6nderilmek yerine bir kuyru\u011fa eklenir ve arka planda i\u015flenir. Kullan\u0131c\u0131 bu s\u0131rada ba\u015fka i\u015flemlerine devam eder.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>JavaScript&#8217;te Asenkron Programlama Y\u00f6ntemleri<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">JavaScript&#8217;in asenkron yap\u0131s\u0131, bu <a href=\"https:\/\/goit.global\/tr\/articles\/programlama-dillerinin-manzarasi-ve-en-populer-dille\/\">programlama dilinin<\/a> en g\u00fc\u00e7l\u00fc \u00f6zelliklerinden biridir. Y\u0131llar i\u00e7inde asenkron <a href=\"https:\/\/goit.global\/tr\/articles\/kodlama-nedir-nasil-ogrenilir\/\">kod yazma<\/a> y\u00f6ntemleri geli\u015fmi\u015f ve kolayla\u015fm\u0131\u015ft\u0131r. Bu b\u00f6l\u00fcmde, callback fonksiyonlar\u0131ndan modern async\/await yap\u0131s\u0131na kadar t\u00fcm y\u00f6ntemleri inceleyece\u011fiz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Callback Fonksiyonlar\u0131: Temel Yakla\u015f\u0131m<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Callback fonksiyonlar\u0131, JavaScript&#8217;te asenkron programlaman\u0131n en eski y\u00f6ntemidir. Bir callback, ba\u015fka bir fonksiyona parametre olarak verilen ve belirli bir olay ger\u00e7ekle\u015fti\u011finde \u00e7a\u011fr\u0131lan fonksiyondur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015fte basit bir callback \u00f6rne\u011fi:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">function veriAl(callback) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;setTimeout(() =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const veri = &#8220;Sunucudan gelen veri&#8221;;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;callback(veri);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;}, 2000);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">veriAl((sonuc) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;console.log(sonuc); <em>\/\/ 2 saniye sonra &#8220;Sunucudan gelen veri&#8221; yazd\u0131r\u0131l\u0131r<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu \u00f6rnekte, veriAl fonksiyonu bir callback al\u0131r ve 2 saniye sonra bu callback&#8217;i \u00e7a\u011f\u0131r\u0131r. Bu s\u00fcre zarf\u0131nda program di\u011fer i\u015flemlerini yapmaya devam eder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Callback&#8217;lerin en b\u00fcy\u00fck sorunu, i\u00e7 i\u00e7e ge\u00e7mi\u015f callback&#8217;lerin olu\u015fturdu\u011fu karma\u015f\u0131kl\u0131kt\u0131r. Buna &#8220;callback cehennemi&#8221; denir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">veriAl((sonuc1) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;isleVeri(sonuc1, (sonuc2) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;kaydetVeri(sonuc2, (sonuc3) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bildirimGonder(sonuc3, (sonuc4) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;console.log(&#8220;T\u00fcm i\u015flemler tamamland\u0131&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu kod yap\u0131s\u0131 hem okunmas\u0131 hem de bak\u0131m\u0131 zor bir hale gelir. \u0130\u015fte bu noktada Promise yap\u0131s\u0131 devreye girer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Promise Yap\u0131s\u0131: Daha Temiz Asenkron Kod<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Promise, gelecekte tamamlanacak bir i\u015flemi temsil eden JavaScript nesnesidir. Bir Promise \u00fc\u00e7 durumdan birinde olabilir:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pending (Beklemede):<\/strong> \u0130\u015flem hen\u00fcz tamamlanmad\u0131<\/li>\n\n\n\n<li><strong>Fulfilled (Yerine Getirildi):<\/strong> \u0130\u015flem ba\u015far\u0131yla tamamland\u0131<\/li>\n\n\n\n<li><strong>Rejected (Reddedildi):<\/strong> \u0130\u015flem hata ile sonu\u00e7land\u0131<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Promise kullan\u0131m\u0131 callback&#8217;lerden \u00e7ok daha okunabilir bir kod yap\u0131s\u0131 sa\u011flar:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">const veriGetir = new Promise((resolve, reject) =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;setTimeout(() =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const basarili = true;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;if (basarili) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;resolve(&#8220;\u0130\u015flem ba\u015far\u0131l\u0131&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;} else {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;reject(&#8220;Bir hata olu\u015ftu&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;}, 2000);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">veriGetir<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;.then(sonuc =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.log(sonuc);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return &#8220;\u0130kinci i\u015flem&#8221;;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;})<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;.then(ikinciSonuc =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.log(ikinciSonuc);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;})<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;.catch(hata =&gt; {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.log(&#8220;Hata:&#8221;, hata);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;});<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Promise&#8217;lerin en b\u00fcy\u00fck avantaj\u0131 zincirleme yap\u0131s\u0131d\u0131r. Her then blo\u011fu bir \u00f6nceki Promise&#8217;in sonucunu al\u0131r ve yeni bir Promise d\u00f6nd\u00fcr\u00fcr. catch blo\u011fu ise zincirde herhangi bir yerde olu\u015fan hatay\u0131 yakalar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Async\/Await: Modern ve Anla\u015f\u0131l\u0131r Yakla\u015f\u0131m<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ES2017 standard\u0131 ile JavaScript&#8217;e eklenen async\/await yap\u0131s\u0131, asenkron programlamay\u0131 \u00e7ok daha anla\u015f\u0131l\u0131r hale getirdi. Bu yap\u0131, Promise&#8217;lerin \u00fczerine kurulmu\u015f bir s\u00f6z dizimi kolayl\u0131\u011f\u0131d\u0131r ve asenkron kodu neredeyse senkron kod gibi yazmam\u0131z\u0131 sa\u011flar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>async anahtar kelimesi<\/strong>, bir fonksiyonun asenkron oldu\u011funu ve Promise d\u00f6nd\u00fcrece\u011fini belirtir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function verileriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return &#8220;Merhaba&#8221;;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Bu fonksiyon asl\u0131nda \u015funa e\u015fde\u011ferdir:<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">function verileriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return Promise.resolve(&#8220;Merhaba&#8221;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>await anahtar kelimesi<\/strong> ise bir Promise&#8217;in sonucunu bekler ve sadece async fonksiyonlar i\u00e7inde kullan\u0131labilir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function kullaniciBilgisiGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;try {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const yanit = await fetch(&#8216;https:\/\/api.example.com\/user\/123&#8217;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const veri = await yanit.json();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.log(veri);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return veri;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;} catch (hata) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.log(&#8216;Hata olu\u015ftu:&#8217;, hata);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">kullaniciBilgisiGetir();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu kod yap\u0131s\u0131 \u00e7ok daha temiz ve anla\u015f\u0131l\u0131rd\u0131r. Sanki senkron kod yaz\u0131yormu\u015fsunuz gibi g\u00f6r\u00fcn\u00fcr ancak arka planda tamamen asenkron \u00e7al\u0131\u015f\u0131r. try-catch blo\u011fu ile hata y\u00f6netimi de son derece basittir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Birden fazla asenkron i\u015flemi s\u0131rayla yapmak istedi\u011finizde:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function cokluIslem() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const kullanici = await kullaniciGetir();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const siparisler = await siparisleriGetir(kullanici.id);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const detaylar = await detaylariGetir(siparisler[0].id);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return detaylar;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Birden fazla i\u015flemi paralel olarak yapmak i\u00e7in Promise.all kullanabilirsiniz:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function paralelIslemler() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const [kullanici, ayarlar, bildirimler] = await Promise.all([<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;kullaniciGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;ayarlariGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;bildirimleriGetir()<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;]);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return { kullanici, ayarlar, bildirimler };<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Asenkron Programlaman\u0131n Avantajlar\u0131<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama, modern yaz\u0131l\u0131m geli\u015ftirmede tercih edilen bir yakla\u015f\u0131md\u0131r \u00e7\u00fcnk\u00fc pek \u00e7ok somut avantaj sunar. Bu avantajlar\u0131 \u00fc\u00e7 ana kategoride inceleyebiliriz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Performans ve Verimlilik Art\u0131\u015f\u0131<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlaman\u0131n en belirgin avantaj\u0131 performans art\u0131\u015f\u0131d\u0131r. Geleneksel senkron yakla\u015f\u0131mda, bir i\u015flem bitene kadar sistem bekler ve bu s\u00fcre zarf\u0131nda kaynaklar\u0131n\u0131 kullanamaz. Asenkron yakla\u015f\u0131mda ise i\u015flemci bo\u015f beklemek yerine s\u00fcrekli olarak ba\u015fka i\u015flere odaklan\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6rne\u011fin, bir web sunucusu d\u00fc\u015f\u00fcn\u00fcn. Senkron mimaride, her kullan\u0131c\u0131 iste\u011fi i\u00e7in ayr\u0131 bir i\u015f par\u00e7ac\u0131\u011f\u0131 olu\u015fturulur. 1000 e\u015fzamanl\u0131 kullan\u0131c\u0131 demek, 1000 i\u015f par\u00e7ac\u0131\u011f\u0131 ve bunlar\u0131n her birinin bellek ve i\u015flemci maliyeti demektir. Asenkron mimaride ise tek bir i\u015f par\u00e7ac\u0131\u011f\u0131 binlerce iste\u011fi rahatl\u0131kla kar\u015f\u0131layabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kaynak verimlili\u011fi a\u00e7\u0131s\u0131ndan da b\u00fcy\u00fck kazan\u00e7lar sa\u011flan\u0131r. A\u011f istekleri, dosya okuma-yazma veya veritaban\u0131 sorgular\u0131 gibi giri\u015f\/\u00e7\u0131k\u0131\u015f i\u015flemleri s\u0131ras\u0131nda i\u015flemci neredeyse hi\u00e7 \u00e7al\u0131\u015fmaz, sadece yan\u0131t bekler. Asenkron programlamada, bu bekleme s\u00fcreleri ba\u015fka i\u015flemler i\u00e7in de\u011ferlendirilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6l\u00e7eklenebilirlik de \u00f6nemli bir avantajd\u0131r. Asenkron sistemler, daha az kaynak kullanarak daha fazla e\u015fzamanl\u0131 kullan\u0131c\u0131ya hizmet verebilir. Bu da hem maliyet a\u00e7\u0131s\u0131ndan hem de sistem performans\u0131 a\u00e7\u0131s\u0131ndan b\u00fcy\u00fck kazan\u00e7lar sa\u011flar.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kullan\u0131c\u0131 Deneyiminde \u0130yile\u015fme<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kullan\u0131c\u0131 deneyimi a\u00e7\u0131s\u0131ndan asenkron programlaman\u0131n faydalar\u0131 hemen fark edilir. Hi\u00e7 kimse bir web sayfas\u0131n\u0131n donmas\u0131n\u0131, bir butona bast\u0131ktan sonra saniyeler boyunca beklemek zorunda kalmay\u0131 sevmez.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama sayesinde kullan\u0131c\u0131 aray\u00fcz\u00fc her zaman yan\u0131t verir. Kullan\u0131c\u0131 bir form doldururken arka planda do\u011frulama yap\u0131labilir, \u00fcr\u00fcn aramas\u0131 yap\u0131l\u0131rken sonu\u00e7lar anl\u0131k olarak g\u00fcncellenebilir, b\u00fcy\u00fck bir dosya y\u00fcklenirken kullan\u0131c\u0131 uygulaman\u0131n ba\u015fka b\u00f6l\u00fcmlerini kullanabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Anl\u0131k geribildirim de kullan\u0131c\u0131 deneyimini iyile\u015ftirir. \u00d6rne\u011fin, bir e-posta g\u00f6nderildi\u011finde kullan\u0131c\u0131 hemen &#8220;G\u00f6nderiliyor&#8230;&#8221; mesaj\u0131 g\u00f6r\u00fcr ve i\u015flem tamamland\u0131\u011f\u0131nda bilgilendirilir. T\u00fcm bu s\u00fcre\u00e7te uygulama kullan\u0131labilir durumda kal\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Animasyonlar ve ge\u00e7i\u015fler kesintisiz \u00e7al\u0131\u015f\u0131r. Bir sayfa y\u00fcklenirken bile animasyonlar ak\u0131c\u0131 \u015fekilde devam eder \u00e7\u00fcnk\u00fc animasyon d\u00f6ng\u00fcs\u00fc asenkron olarak di\u011fer i\u015flemlerden ba\u011f\u0131ms\u0131z \u00e7al\u0131\u015f\u0131r.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kod Kalitesi ve Bak\u0131m Kolayl\u0131\u011f\u0131<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Modern asenkron programlama y\u00f6ntemleri, \u00f6zellikle async\/await yap\u0131s\u0131, kod okunabilirli\u011fini b\u00fcy\u00fck \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Asenkron kod neredeyse senkron kod kadar anla\u015f\u0131l\u0131r hale gelir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mod\u00fcler yap\u0131 olu\u015fturmak da kolayla\u015f\u0131r. Her asenkron i\u015flem kendi fonksiyonu i\u00e7inde tan\u0131mlanabilir ve birbirinden ba\u011f\u0131ms\u0131z olarak test edilebilir. Bu da kodun yeniden kullan\u0131labilirli\u011fini art\u0131r\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hata y\u00f6netimi merkezi bir noktadan yap\u0131labilir. try-catch bloklar\u0131 ile hem senkron hem de asenkron hatalar\u0131 yakalayabilirsiniz:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function guvenliIslem() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;try {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const sonuc = await riskliIslem();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return sonuc;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;} catch (hata) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.error(&#8216;Hata yakaland\u0131:&#8217;, hata);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;<em>\/\/ Hata loglanabilir, kullan\u0131c\u0131ya bildirim g\u00f6sterilebilir<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return varsayilanDeger;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kod bak\u0131m\u0131 da kolayla\u015f\u0131r. Callback cehenneminden kurtulmu\u015f, temiz ve okunabilir bir kod yap\u0131s\u0131, yeni geli\u015ftiricilerin projeye adapte olmas\u0131n\u0131 h\u0131zland\u0131r\u0131r ve hata ay\u0131klama s\u00fcresini azalt\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Yayg\u0131n Hatalar ve \u00c7\u00f6z\u00fcmleri<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama \u00f6\u011frenirken baz\u0131 yayg\u0131n hatalar yap\u0131labilir. Bu hatalar\u0131 bilmek ve nas\u0131l \u00f6nlenece\u011fini \u00f6\u011frenmek, daha sa\u011flam kod yazman\u0131za yard\u0131mc\u0131 olur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Await Anahtar Kelimesini Unutmak<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En s\u0131k yap\u0131lan hatalardan biri, bir Promise d\u00f6nd\u00fcren fonksiyonu \u00e7a\u011f\u0131r\u0131rken await kullanmay\u0131 unutmakt\u0131r:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Yanl\u0131\u015f kullan\u0131m<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function veriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const sonuc = fetch(&#8216;https:\/\/api.example.com\/data&#8217;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;console.log(sonuc); <em>\/\/ Promise nesnesi yazd\u0131r\u0131l\u0131r, veri de\u011fil!<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Do\u011fru kullan\u0131m<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function veriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const sonuc = await fetch(&#8216;https:\/\/api.example.com\/data&#8217;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const veri = await sonuc.json();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;console.log(veri); <em>\/\/ Ger\u00e7ek veri yazd\u0131r\u0131l\u0131r<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">await kullanmad\u0131\u011f\u0131n\u0131zda, fonksiyon Promise nesnesini d\u00f6nd\u00fcr\u00fcr ancak sonucunu beklemez. Bu durumda undefinedveya beklenmedik sonu\u00e7larla kar\u015f\u0131la\u015fabilirsiniz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Hata Yakalama Eksikli\u011fi<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron i\u015flemlerde hata yakalamay\u0131 unutmak, uygulaman\u0131z\u0131n beklenmedik \u015fekilde \u00e7\u00f6kmesine neden olabilir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Yanl\u0131\u015f &#8211; hata y\u00f6netimi yok<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function kullaniciGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const yanit = await fetch(&#8216;https:\/\/api.example.com\/user&#8217;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const veri = await yanit.json();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return veri;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Do\u011fru &#8211; try-catch ile hata y\u00f6netimi<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function kullaniciGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;try {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const yanit = await fetch(&#8216;https:\/\/api.example.com\/user&#8217;);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;if (!yanit.ok) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;throw new Error(`HTTP hatas\u0131: ${yanit.status}`);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;const veri = await yanit.json();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return veri;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;} catch (hata) {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;console.error(&#8216;Kullan\u0131c\u0131 getirilemedi:&#8217;, hata);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;return null;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Her asenkron i\u015flemde mutlaka hata y\u00f6netimi yapmal\u0131s\u0131n\u0131z. A\u011f ba\u011flant\u0131s\u0131 kesilmi\u015f olabilir, API hata d\u00f6nm\u00fc\u015f olabilir veya veri format\u0131 bekledi\u011finiz gibi olmayabilir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Async Fonksiyon D\u0131\u015f\u0131nda Await Kullanmak<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">await anahtar kelimesi sadece async olarak i\u015faretlenmi\u015f fonksiyonlar i\u00e7inde kullan\u0131labilir:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Yanl\u0131\u015f &#8211; normal fonksiyonda await kullan\u0131m\u0131<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">function veriIsle() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const veri = await veriGetir(); <em>\/\/ Hata verir!<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;console.log(veri);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Do\u011fru &#8211; async fonksiyonda await kullan\u0131m\u0131<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function veriIsle() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const veri = await veriGetir();<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;console.log(veri);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E\u011fer bir fonksiyonda await kullanman\u0131z gerekiyorsa, o fonksiyonu mutlaka async olarak i\u015faretlemelisiniz.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Promise.all Kullan\u0131m\u0131nda Dikkat Edilmesi Gerekenler<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Birden fazla asenkron i\u015flemi paralel \u00e7al\u0131\u015ft\u0131rmak i\u00e7in Promise.all kullan\u0131rken, tek bir hata t\u00fcm i\u015flemi durdurur:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">javascript<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Riskli kullan\u0131m<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function tumVerileriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const [kullanici, siparisler, yorumlar] = await Promise.all([<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;kullaniciGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;siparisleriGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;yorumlariGetir()<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;]);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;<em>\/\/ E\u011fer herhangi biri hata verirse, hi\u00e7bir veri gelmez<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\/\/ Daha g\u00fcvenli yakla\u015f\u0131m<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">async function tumVerileriGetir() {<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const sonuclar = await Promise.allSettled([<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;kullaniciGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;siparisleriGetir(),<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;&nbsp;&nbsp;yorumlariGetir()<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;]);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const kullanici = sonuclar[0].status === &#8216;fulfilled&#8217; ? sonuclar[0].value : null;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const siparisler = sonuclar[1].status === &#8216;fulfilled&#8217; ? sonuclar[1].value : [];<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;const yorumlar = sonuclar[2].status === &#8216;fulfilled&#8217; ? sonuclar[2].value : [];<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;&nbsp;return { kullanici, siparisler, yorumlar };<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">}<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Promise.allSettled kulland\u0131\u011f\u0131n\u0131zda, baz\u0131 i\u015flemler ba\u015far\u0131s\u0131z olsa bile di\u011ferlerinin sonu\u00e7lar\u0131n\u0131 alabilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>GoIT Turkey ile Asenkron Programlama \u00d6\u011frenme<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Modern web geli\u015ftirmede asenkron programlama bilgisi vazge\u00e7ilmezdir. Bir uygulaman\u0131n performansl\u0131, h\u0131zl\u0131 ve kullan\u0131c\u0131 dostu olmas\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde asenkron yap\u0131lar\u0131n do\u011fru kullan\u0131m\u0131na ba\u011fl\u0131d\u0131r. <a href=\"https:\/\/goit.global\/tr\/courses\/fullstack\/\">GoIT Turkey Full Stack Developer Kursu<\/a>, bu kritik beceriyi kapsaml\u0131 bir \u015fekilde \u00f6\u011freterek sizi sekt\u00f6rde aranan bir geli\u015ftirici haline getirir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>JavaScript Mod\u00fcl\u00fcnde Asenkron Programlama<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GoIT Turkey&#8217;nin e\u011fitim program\u0131, asenkron programlamay\u0131 temelden ileri seviyeye kadar sistematik bir \u015fekilde \u00f6\u011fretir. Kurs i\u00e7eri\u011fi \u015funlar\u0131 kapsar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Callback Fonksiyonlar\u0131:<\/strong> Asenkron mant\u0131\u011f\u0131n temellerini \u00f6\u011frenerek ba\u015flang\u0131\u00e7 yapars\u0131n\u0131z. Callback&#8217;lerin nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, ne zaman kullan\u0131lmas\u0131 gerekti\u011fini ve nelere dikkat edilmesi gerekti\u011fini pratikte g\u00f6r\u00fcrs\u00fcn\u00fcz.<\/li>\n\n\n\n<li><strong>Promise Kullan\u0131m\u0131:<\/strong> Modern JavaScript&#8217;in kalbi olan Promise yap\u0131s\u0131n\u0131 detayl\u0131 bir \u015fekilde \u00f6\u011frenirsiniz. Promise zincirleme, then ve catch bloklar\u0131, Promise.all ve Promise.race gibi geli\u015fmi\u015f \u00f6zellikleri ger\u00e7ek senaryolarda uygulars\u0131n\u0131z.<\/li>\n\n\n\n<li><strong>Async\/Await Yap\u0131s\u0131:<\/strong> ES2017 ile gelen bu modern s\u00f6z dizimini kullanarak, okunabilir ve bak\u0131m\u0131 kolay asenkron kod yazmay\u0131 \u00f6\u011frenirsiniz. Hata y\u00f6netimi, paralel i\u015flemler ve karma\u015f\u0131k asenkron ak\u0131\u015flar\u0131 y\u00f6netme becerilerini kazan\u0131rs\u0131n\u0131z.<\/li>\n\n\n\n<li><strong>Fetch API:<\/strong> Ger\u00e7ek d\u00fcnya uygulamalar\u0131nda en \u00e7ok kullan\u0131lan API olan Fetch&#8217;i kullanarak sunucularla ileti\u015fim kurmay\u0131, veri \u00e7ekmeyi, POST istekleri atmay\u0131 ve yan\u0131tlar\u0131 i\u015flemeyi \u00f6\u011frenirsiniz.<\/li>\n\n\n\n<li><strong>Hata Y\u00f6netimi:<\/strong> Asenkron i\u015flemlerde olu\u015fabilecek hatalar\u0131 yakalamay\u0131, kullan\u0131c\u0131ya anlaml\u0131 hata mesajlar\u0131 g\u00f6stermeyi ve uygulaman\u0131n \u00e7\u00f6kmesini \u00f6nlemeyi \u00f6\u011frenirsiniz.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Ger\u00e7ek D\u00fcnya Projeleri ile Pratik<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GoIT Turkey&#8217;de teori kadar pratik de \u00f6nemlidir. Kurs boyunca ger\u00e7ek d\u00fcnya senaryolar\u0131n\u0131 yans\u0131tan projeler geli\u015ftirirsiniz:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hava Durumu Uygulamas\u0131:<\/strong> Harici bir API&#8217;den hava durumu verilerini asenkron olarak \u00e7ekerek kullan\u0131c\u0131ya g\u00f6steren bir uygulama geli\u015ftirirsiniz. Konum bazl\u0131 arama, \u00e7oklu \u015fehir takibi ve tahmin g\u00f6sterimi gibi \u00f6zellikleri uygulayarak API entegrasyonu konusunda uzmanla\u015f\u0131rs\u0131n\u0131z.<\/li>\n\n\n\n<li><strong>E-Ticaret Sitesi:<\/strong> \u00dcr\u00fcnlerin asenkron olarak y\u00fcklenmesi, sepete ekleme i\u015flemleri, filtreleme ve s\u0131ralama \u00f6zelliklerini ger\u00e7ekle\u015ftirirsiniz. Kullan\u0131c\u0131 her i\u015flem yapt\u0131\u011f\u0131nda sayfa yenilenmeden veriler g\u00fcncellenir ve kullan\u0131c\u0131 deneyimi kesintisiz devam eder.<\/li>\n\n\n\n<li><strong>Sosyal Medya Ak\u0131\u015f\u0131:<\/strong> Sonsuz kayd\u0131rma \u00f6zelli\u011fi ile kullan\u0131c\u0131 a\u015fa\u011f\u0131 kayd\u0131rd\u0131k\u00e7a yeni g\u00f6nderilerin otomatik olarak y\u00fcklenmesini sa\u011flars\u0131n\u0131z. Bu proje, performans optimizasyonu ve kullan\u0131c\u0131 deneyimi konular\u0131nda de\u011ferli beceriler kazand\u0131r\u0131r.<\/li>\n\n\n\n<li><strong>Form Do\u011frulama Sistemi:<\/strong> Kullan\u0131c\u0131 bir form doldururken, kullan\u0131c\u0131 ad\u0131 m\u00fcsaitli\u011fi kontrol\u00fc, e-posta do\u011frulama ve ger\u00e7ek zamanl\u0131 geribildirimlerin nas\u0131l yap\u0131laca\u011f\u0131n\u0131 \u00f6\u011frenirsiniz.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Kapsaml\u0131 ve Destekleyici \u00d6\u011frenme S\u00fcreci<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GoIT Turkey&#8217;nin 9 ayl\u0131k Full Stack Developer program\u0131, sizi s\u0131f\u0131rdan profesyonel seviyeye ta\u015f\u0131yacak \u015fekilde tasarlanm\u0131\u015ft\u0131r. Asenkron programlama becerilerinizi geli\u015ftirirken \u015fu destekleri al\u0131rs\u0131n\u0131z:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mentor Deste\u011fi:<\/strong> Deneyimli mentorlar, yazd\u0131\u011f\u0131n\u0131z asenkron kodlar\u0131 inceler, en iyi uygulamalar\u0131 g\u00f6sterir ve kar\u015f\u0131la\u015ft\u0131\u011f\u0131n\u0131z sorunlarda size rehberlik eder. Kod inceleme seanslar\u0131nda, kodunuzun performans\u0131n\u0131 ve okunabilirli\u011fini nas\u0131l art\u0131raca\u011f\u0131n\u0131z\u0131 \u00f6\u011frenirsiniz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kod \u0130nceleme ve Geribildirim:<\/strong> Her projeniz detayl\u0131 bir \u015fekilde incelenir. Asenkron kod yazarken yap\u0131lan yayg\u0131n hatalar, performans iyile\u015ftirme f\u0131rsatlar\u0131 ve daha temiz kod yazma teknikleri hakk\u0131nda ki\u015fiselle\u015ftirilmi\u015f geribildirim al\u0131rs\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Topluluk Deste\u011fi:<\/strong> Ayn\u0131 yolculukta olan di\u011fer \u00f6\u011frencilerle birlikte \u00e7al\u0131\u015f\u0131r, deneyimlerinizi payla\u015f\u0131r ve birbirinizden \u00f6\u011frenirsiniz. Grup projeleri sayesinde ekip \u00e7al\u0131\u015fmas\u0131 becerilerinizi de geli\u015ftirirsiniz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0130stihdam Garantisi:<\/strong> GoIT Turkey mezunlar\u0131n\u0131n %85&#8217;i kurs bitiminde sekt\u00f6rde i\u015f bulur. Asenkron programlama gibi kritik becerilere sahip olmak, i\u015f g\u00f6r\u00fc\u015fmelerinde sizi \u00f6ne \u00e7\u0131kar\u0131r ve i\u015fverenlerin arad\u0131\u011f\u0131 nitelikli geli\u015ftirici profiline ula\u015fman\u0131z\u0131 sa\u011flar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sonu\u00e7: Asenkron D\u00fc\u015f\u00fcnme Becerisi Kazan\u0131n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlama, modern web geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. Kullan\u0131c\u0131lar\u0131n her ge\u00e7en g\u00fcn daha h\u0131zl\u0131 ve daha ak\u0131c\u0131 uygulamalar bekledi\u011fi bir d\u00fcnyada, asenkron programlama bilmeden kaliteli web uygulamalar\u0131 geli\u015ftirmek neredeyse imkans\u0131zd\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu yaz\u0131da \u00f6\u011frendi\u011finiz gibi, JavaScript&#8217;te asenkron programlama callback fonksiyonlar\u0131ndan ba\u015flayarak Promise yap\u0131s\u0131na ve sonunda modern async\/await s\u00f6z dizimine evrilmi\u015ftir. Her yeni y\u00f6ntem, bir \u00f6ncekinin \u00fczerine in\u015fa edilmi\u015f ve kodun okunabilirli\u011fini, bak\u0131m\u0131n\u0131 ve performans\u0131n\u0131 art\u0131rm\u0131\u015ft\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Asenkron programlamay\u0131 \u00f6\u011frenmek sadece teknik bir beceri kazanmak de\u011fildir; ayn\u0131 zamanda bir d\u00fc\u015f\u00fcnce bi\u00e7imi geli\u015ftirmektir. Uygulaman\u0131z\u0131 tasarlarken hangi i\u015flemlerin asenkron olmas\u0131 gerekti\u011fini, kullan\u0131c\u0131 deneyimini nas\u0131l optimize edece\u011finizi ve performans sorunlar\u0131n\u0131 nas\u0131l \u00e7\u00f6zece\u011finizi d\u00fc\u015f\u00fcnmeye ba\u015flars\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">GoIT Turkey Full Stack Developer Kursu, bu kritik beceriyi profesyonel seviyede \u00f6\u011frenmeniz i\u00e7in ideal bir f\u0131rsatt\u0131r. Kapsaml\u0131 m\u00fcfredat\u0131, ger\u00e7ek d\u00fcnya projeleri, mentor deste\u011fi ve g\u00fc\u00e7l\u00fc topluluk yap\u0131s\u0131 ile asenkron programlamay\u0131 teoriden prati\u011fe tam anlam\u0131yla kavrayabilirsiniz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Performansl\u0131, kullan\u0131c\u0131 dostu ve modern web uygulamalar\u0131 geli\u015ftirmek i\u00e7in asenkron programlamada uzmanla\u015f\u0131n. Yaz\u0131l\u0131m geli\u015ftirme kariyerinizde bir sonraki seviyeye \u00e7\u0131kmak i\u00e7in bug\u00fcn harekete ge\u00e7in ve GoIT Turkey ile yolculu\u011funuza ba\u015flay\u0131n!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u00fcn\u00fcm\u00fcz web uygulamalar\u0131nda kullan\u0131c\u0131 deneyimi her \u015feyden \u00f6nemlidir. Ara\u015ft\u0131rmalar, web sitesi d\u00f6n\u00fc\u015f\u00fcm oranlar\u0131n\u0131n sayfa y\u00fckleme s\u00fcresindeki her ek saniyede ortalama %4,42 d\u00fc\u015ft\u00fc\u011f\u00fcn\u00fc g\u00f6steriyor. Bir e-ticaret sitesinde \u00fcr\u00fcnleri g\u00f6r\u00fcnt\u00fclerken, hava durumu uygulamas\u0131nda anl\u0131k verileri al\u0131rken veya sosyal medyada g\u00f6nderi payla\u015f\u0131rken, hi\u00e7bir kullan\u0131c\u0131 ekran\u0131n donmas\u0131n\u0131 beklemek istemez. Modern web geli\u015ftirmenin temel ta\u015flar\u0131ndan biri olan asenkron programlama, i\u015fte &hellip; <a href=\"https:\/\/goit.global\/tr\/articles\/asenkron-programlama-nedir-javascript-te-async-await-kullanimi\/\">Continued<\/a><\/p>\n","protected":false},"featured_media":46874,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"categories":[12034],"tags":[],"class_list":["post-46873","articles","type-articles","status-publish","has-post-thumbnail","hentry","category-fullstack"],"acf":[],"_links":{"self":[{"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/articles\/46873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/articles"}],"about":[{"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/types\/articles"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/media\/46874"}],"wp:attachment":[{"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/media?parent=46873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/categories?post=46873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/goit.global\/tr\/wp-json\/wp\/v2\/tags?post=46873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}