JavaScript
1.76K subscribers
500 photos
47 videos
9 files
189 links
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
Download Telegram
πŸ‘4
JavaScript
Photo
abs1.toString() == abs2.toString() ?
Anonymous Quiz
76%
true
20%
false
3%
null
1%
0
❀4πŸ”₯3
String(23) == (23).toString()
Anonymous Quiz
73%
true
23%
fasle
3%
error
1%
null
String(23) === (23).toString()
Anonymous Quiz
46%
false
52%
true
1%
null
2%
error
toFixed()

toFixed() - sonlarni kerakli qatorgacha yaxlitlaydi va bizga string korinishdagi malumot qaytaradi.

2.345.toFixed(0) => "2"
23
.2.toFixed(3) => '23.200'

@abs_javascript
❀3πŸ‘3πŸ”₯1
101.1.toFixed(3) == 101.100
Anonymous Quiz
62%
true
36%
false
2%
null
1%
0
πŸ‘4
101.1.toFixed(3) == 101.1
Anonymous Quiz
44%
true
51%
fasle
2%
0
2%
null
⚑3πŸ‘1
❀1
toString()

toStringni sonlar bilan ishlatganimizda uni base argumentidan foydalanishimiz mumkin base 3 ta qiymat qabul qiladi (2 , 10 ,16 ).

base:
2 bosa ga teng bolsa 2 lik sanoq sistemasiga o'giradi. ( 0 va 1 )

10 bolsa β€” 10 lik sanoq sistemasiga o'giradi ( 0 dan 9 gacha )

16 bolsa β€” (0 dan 9 gacha raqamlar va A dan F gacha belgilar).

@abs_javascript
πŸ‘7❀2
let abs = 123
abs.toString(2)
Anonymous Quiz
66%
1111011
19%
1111012
13%
1111013
2%
1111014
πŸ‘6
NaN === NaN
Anonymous Quiz
52%
true
40%
false
4%
null
4%
error
JavaScript
NaN === NaN
Menga interyuda tushgan savol.)
πŸ“7πŸ‘1
isNaN() πŸ“›

isNaN() - funksiyasi qiymatni NaN ekanligini yani son emasligini tekshiradi.

agar qiymat son bo'lsa falseπŸ‘Ž
agar qiymat Number bo'lmasa true βœ… qiymat qaytaradi.

@abs_javascript
πŸ‘4❀2πŸ₯΄2
isNaN(true)
Anonymous Quiz
43%
true
50%
false
4%
0
3%
error
❀2
Soat 12 bo'lyabdi , uyqu yoq lekin miyyaga , o'qiysanmi? desam , o'qiman degan holatda turibdi πŸ˜€ , soat 3 gacha doc o'qiyman agar yangiroq narsa chiqib qolsa quiz yoki post qilib yozaman.

Agar svet o'chib qolmasa , qishloqdaman hozir πŸ˜…
πŸ‘12😁5
-0 === 0
Anonymous Quiz
46%
true
49%
false
3%
null
1%
0
isNaN(NaN)
Anonymous Quiz
63%
true
30%
false
5%
0
1%
error
isFinite(value)

isFinite(value) - value sini Number ga aylantiradi , agar Number ga aylansa true qaytaradi aks holatda false qaytadi

isFinite("23") => true
isFinite("abs") => false

Bir narsani aytib o'tishim kerak , agar isFinete() ning value si NaN/Infinity/-Infinity bo'lsaham false qiymat qaytadi.

isFinite(NaN) => false
isFinite( Infinity ) => false
(πŸ”₯)

@abs_javascript
πŸ”₯7πŸ‘2
isFinite( 1 + '3' )
Anonymous Quiz
66%
true
32%
false
0%
error
2%
null
isFinite( 1/0 )
Anonymous Quiz
46%
true
47%
false
5%
null
2%
error