JS tiplarni o‘zgartirish
JavaScript tiplarni o‘zgartirish jadvali
Quyidagi jadvalda turli JavaScript qiymatlarini Number, String va Boolean tiplariga o‘zgartirish natijalari ko‘rsatilgan:
| Asl qiymat |
Number’ga o‘zgartirilgan |
String’ga o‘zgartirilgan |
Boolean’ga o‘zgartirilgan |
Sinab ko‘ring |
|---|---|---|---|---|
| false | 0 | "false" | false | Sinab ko‘ring » |
| true | 1 | "true" | true | Sinab ko‘ring » |
| 0 | 0 | "0" | false | Sinab ko‘ring » |
| 1 | 1 | "1" | true | Sinab ko‘ring » |
| "0" | 0 | "0" | true | Sinab ko‘ring » |
| "1" | 1 | "1" | true | Sinab ko‘ring » |
| NaN | NaN | "NaN" | false | Sinab ko‘ring » |
| Infinity | Infinity | "Infinity" | true | Sinab ko‘ring » |
| -Infinity | -Infinity | "-Infinity" | true | Sinab ko‘ring » |
| "" | 0 | "" | false | Sinab ko‘ring » |
| "20" | 20 | "20" | true | Sinab ko‘ring » |
| "twenty" | NaN | "twenty" | true | Sinab ko‘ring » |
| [ ] | 0 | "" | true | Sinab ko‘ring » |
| [20] | 20 | "20" | true | Sinab ko‘ring » |
| [10,20] | NaN | "10,20" | true | Sinab ko‘ring » |
| ["twenty"] | NaN | "twenty" | true | Sinab ko‘ring » |
| ["ten","twenty"] | NaN | "ten,twenty" | true | Sinab ko‘ring » |
| function(){} | NaN | "function(){}" | true | Sinab ko‘ring » |
| { } | NaN | "[object Object]" | true | Sinab ko‘ring » |
| null | 0 | "null" | false | Sinab ko‘ring » |
| undefined | NaN | "undefined" | false | Sinab ko‘ring » |
Eslatma: Qo‘shtirnoq ("") ichidagi qiymatlar string qiymatlarni bildiradi. Qizil rangdagi qiymatlar (ba’zi) dasturchilar kutmagan bo‘lishi mumkin bo‘lgan qiymatlardir.
JavaScript’da tiplarni o‘zgartirish haqidagi darslik uchun JavaScript tiplarni o‘zgartirish darsligimizni o‘qing.
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