JavaScript

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Men yozgan va aytganlarimga 100% ishonmang , chunki men ham siz kabi haliham o'rganyabman. Blog: @abdulvahob_blog Bog'lanish uchun: @A_Abdulvahob

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1 386

123 == "123"

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"123" === 123

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123 != 123

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let a = 'abs_dasturlash' console.log( a.includes('das'))

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true + false

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undefined + undefined

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null + null

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null + undefined

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let a = 123; let b = a / "abs" console.log( a)

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let a = 12; a+=12; console.log(a)

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4 + 2**2

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consolga nima chiqishini toping ?

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lastIndexOf metodi : satr ichida belgilangan element yoki pastki qatorning oxirgi paydo bo'lish indeksini topish uchun ishlatiladi. indexOf metodi : massiv yoki satrdagi ma'lum elementni qidirish uchun ishlatiladigan va uning massiv yoki satr ichidagi o'rnini (indeksini) qaytaradigan usul. @abs_dasturlash

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Object nima ? JavaScript ob'ekti - bu xususiyatlar to'plami bo'lib, har bir xususiyat o'z nomi va qiymatiga ega va har qanday ma'lumot turini, shu jumladan boshqa ob'ektlarni ham o'z ichiga olishi mumkin. @abs_javascript

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Buni javobini hato deyishibdi Buni javobi hato emas , toCapitalize degan methot degan qiymat yoq javob: Error qaytaradi.

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Kanalga obina bo'lmaganlar obuna bo'laylik 🫨 @abs_javascript

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console.log("@abs_javascript".indexOf("vas"));

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console.log("@abs_javascript"[2]);

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console.log("aBs Javascript".toLowerCase());

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