JavaScript’e Giri\u015f: Veri Tipleri, De\u011fi\u015fkenler ve Daha Fazlas\u0131<\/p>\n
Merhaba! Bug\u00fcn JavaScript’in temel yap\u0131 ta\u015flar\u0131n\u0131 ke\u015ffedece\u011fiz. Bu, \u00f6zellikle yeni ba\u015flayanlar i\u00e7in olduk\u00e7a \u00f6nemli bir konudur. Bu rehberde, veri tipleri, de\u011fi\u015fkenler, operat\u00f6rler, ko\u015fullu ifadeler ve d\u00f6ng\u00fcler gibi konular\u0131 ele alaca\u011f\u0131z. \u00d6ncelikle, de\u011fi\u015fkenler ve veri tipleriyle ba\u015flayal\u0131m.<\/p>\n
JavaScript’te de\u011fi\u015fkenler, verileri saklamak i\u00e7in kullan\u0131lan kaplard\u0131r. Bir de\u011fi\u015fkeni tan\u0131mlamak i\u00e7in JavaScript’te \u00e7e\u015fitli veri tipleri bulunur. Bunlardan baz\u0131lar\u0131 \u015funlard\u0131r:<\/p>\n Operat\u00f6rler, de\u011fi\u015fkenler \u00fczerinde i\u015flemler ger\u00e7ekle\u015ftirmek i\u00e7in kullan\u0131l\u0131r. Aritmetik operat\u00f6rler (+, -, *, \/, %), kar\u015f\u0131la\u015ft\u0131rma operat\u00f6rleri (==, ===, !=, !==, >, <, >=, <=), mant\u0131ksal operat\u00f6rler (&&, ||, !) ve atama operat\u00f6rleri (=, +=, -=, *=, \/=) gibi \u00e7e\u015fitli operat\u00f6rler mevcuttur. Ayr\u0131ca, art\u0131rma (++) ve azaltma (--) operat\u00f6rleri de vard\u0131r.<\/p>\n Ko\u015fullu ifadeler, belirli ko\u015fullar\u0131n kar\u015f\u0131lan\u0131p kar\u015f\u0131lanmad\u0131\u011f\u0131na ba\u011fl\u0131 olarak farkl\u0131 kod bloklar\u0131n\u0131 \u00e7al\u0131\u015ft\u0131rmak i\u00e7in kullan\u0131l\u0131r. JavaScript’te D\u00f6ng\u00fcler, ayn\u0131 kod blo\u011funu birden fazla kez \u00e7al\u0131\u015ft\u0131rmak i\u00e7in kullan\u0131l\u0131r. JavaScript’te \u0130\u015fte bu kadar! Bu temel kavramlar\u0131 \u00f6\u011frenerek JavaScript yolculu\u011funuza sa\u011flam bir ba\u015flang\u0131\u00e7 yapm\u0131\u015f olacaks\u0131n\u0131z. Daha fazla bilgi i\u00e7in fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz. Ayr\u0131ca, daha detayl\u0131 bilgi i\u00e7in bu kayna\u011fa<\/a> da g\u00f6z atabilirsiniz.<\/p>\n #Etiketler: JavaScript, de\u011fi\u015fkenler, veri tipleri, operat\u00f6rler, ko\u015fullu ifadeler, d\u00f6ng\u00fcler, programlama, web geli\u015ftirme, javascript dersleri, Fatih Soysal<\/p>\n <\/body>let<\/code>, const<\/code> veya var<\/code> anahtar kelimelerini kullan\u0131r\u0131z. let<\/code> ve const<\/code>, modern JavaScript’te tercih edilir. let<\/code> ile tan\u0131mlanan de\u011fi\u015fkenlerin de\u011feri daha sonra de\u011fi\u015ftirilebilirken, const<\/code> ile tan\u0131mlanan de\u011fi\u015fkenlerin de\u011feri sabittir. \u00d6te yandan, var<\/code>, fonksiyon kapsaml\u0131d\u0131r ve genellikle tercih edilmez.<\/p>\n\n
true<\/code>) veya yanl\u0131\u015f (false<\/code>) de\u011ferlerini temsil eder.<\/li>\n\nlet age = 30; \/\/ Number\nlet name = \"Fatih Soysal\"; \/\/ String\nlet isAdult = true; \/\/ Boolean\nlet city = null; \/\/ Null\nlet car; \/\/ Undefined\n<\/code><\/pre>\nOperat\u00f6rler<\/h2>\n
Ko\u015fullu \u0130fadeler<\/h2>\n
if<\/code>, else if<\/code> ve else<\/code> ifadeleri kullan\u0131l\u0131r.<\/p>\n\nlet temperature = 25;\n\nif (temperature > 20) {\n console.log(\"Hava s\u0131cak.\");\n} else if (temperature > 10) {\n console.log(\"Hava \u0131l\u0131man.\");\n} else {\n console.log(\"Hava so\u011fuk.\");\n}\n<\/code><\/pre>\nD\u00f6ng\u00fcler<\/h2>\n
for<\/code>, while<\/code> ve do...while<\/code> d\u00f6ng\u00fcleri kullan\u0131l\u0131r. <\/p>\n\nfor (let i = 0; i < 10; i++) {\n console.log(i);\n}\n\nlet count = 0;\nwhile (count < 5) {\n console.log(count);\n count++;\n}\n<\/code><\/pre>\n
\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript’e Giri\u015f: Veri Tipleri, De\u011fi\u015fkenler ve Daha Fazlas\u0131 Merhaba! Bug\u00fcn JavaScript’in temel yap\u0131 ta\u015flar\u0131n\u0131 ke\u015ffedece\u011fiz. Bu, \u00f6zellikle yeni…","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-10283","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n