JavaScript
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About JavaScript 🌵
Interyu savollar va Test yechish uchun website imiz: javascript-savollar.uz

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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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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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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JavaScript
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consolga nima chiqishini toping ?
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4 + 2**2
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let a = 12;
a+=12;
console.log(a)
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let a = 123;
let b = a / "abs"
console.log( a)
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error
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NAN
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123
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null + undefined
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error
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null + null
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undefined + undefined
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true + false
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truefalse
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let a = 'abs_dasturlash'

console.log( a.includes('das'))
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"123" === 123
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123 == "123"
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Console ga hato malumotlarni qanday chiqarish mumkin
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console.error()
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console.dir()
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console.log()
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console.clear()
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Console ga console oynasini tozalash buyrug'i qanday beriladi ?
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konsolga ogohlantiruvchi xabarlar yozish imkonini beradigan buyruq
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console.table()
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{
let abs = 34;
} console.log(abs);
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abs is not defined
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"TDZ" eng sodda usul bilan tushuntirib bera olasizmi ?

Siz TDZ ni qanday organgansiz ?

@abs_javascript
TDZJS nima?

TDZ JS "Vaqtinchalik o'lik zona JavaScript" degan ma'noni anglatadi. Bu o'zgaruvchini ishga tushirish va uni yaratish o'rtasidagi davrni bildiradi

Bu vaqt davomida o'zgaruvchiga kirishga har qanday urinish ReferenceError ga olib keladi.

Tushunish ham , tushuntirish ham qiyin bo'lgan mavzu fikrimcha 🤦‍♂️

@abs_dasturlash
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