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

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Blog: @abdulvahob_blog

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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
(🔥)

@abs_javascript
🔥7👍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
null === null
Anonymous Quiz
61%
true
36%
false
3%
0
0%
error
window === window
Anonymous Quiz
77%
true
21%
false
1%
null
1%
object
parseFloat()

parseFloat() - String ichidan birinchi argumentini o'qiydi va onlik sonni qaytaradi. Agar son bo'lmasa NaN qaytaradi. (👍)

parseFloat("23px") => 23
parseFloat("uhlasangchi") => NaN
parseFloat("Soat 12.40 bo'ldi") => NaN


@abs_javascript
👍11😁1
parseFloat(23 + "abs")
Anonymous Quiz
61%
23
21%
23abs
14%
NaN
4%
true
parseFloat(" soat 1 da uhlayman")
Anonymous Quiz
36%
1
13%
true
45%
NaN
6%
error
👍1
parseFloat("1 da uhlamayman")
Anonymous Quiz
66%
1
26%
NaN
6%
null
2%
error
parseInt()

parseInt() - String ichidan birinchi argumentini o'qiydi va butun sonni qaytaradi. Agar son bo'lmasa NaN qaytaradi. (👍)

parseInt("23px") => 23
parseInt("23.4553px") => 23
parseInt("Soat 12.50 bo'ldi") => NaN


@abs_javascript
👍9
parseInt('12.5px")
Anonymous Quiz
64%
12
31%
12.5
3%
NaN
2%
px
parseInt(" 12 34 54 " )
Anonymous Quiz
62%
12
3%
34
3%
54
33%
12 34 54
Math.random() < 0
Anonymous Quiz
30%
true
63%
false
5%
null
2%
error
Math.random() < 1
Anonymous Quiz
69%
true
23%
false
4%
null
3%
error
Math.max(3, 5, -10, 0, 1)
Anonymous Quiz
10%
3
10%
-10
80%
5
0%
1
👍1
Math.pow(2, 3)
Anonymous Quiz
65%
8
23%
6
3%
9
10%
5
👍2
"javascript".length
Anonymous Quiz
33%
9
55%
10
6%
11
6%
true
👍1
"Nigora"[0]
Anonymous Quiz
77%
N
4%
i
17%
error
2%
a
👍1
"Nigora"[-1]
Anonymous Quiz
10%
null
49%
a
35%
undefined
6%
error
👍1