assert()
Misollar
Konsolga xabar yozing:
console.assert(x + y == 11, "Expression returned false");
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Konsolga obyekt yozing:
const myObj = {firstname:"John", lastname:"Doe"};
console.assert(x + y == 11, myObj);
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Quyida ko‘proq misollar.
Tavsif
assert() metodi ifoda false qiymatini bersa, konsolga xabar yozadi.
Sintaksis
console.assert(expression, message)
Parametrlar
| Parametr | Tavsif |
| expression | Majburiy. Istalgan ifoda. Agar ifoda false qiymatini bersa, konsolga xabar yoziladi. |
| message | Majburiy. Konsolga yoziladigan xabar. |
Ko‘proq misollar
Element mavjudligini tekshiring:
console.assert(document.getElementById("demo"), "You have no element with ID 'demo'");
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Konsolga massiv yozing:
const myArr = ["Orange", "Banana", "Mango", "Kiwi" ];
console.assert(x + y == 11, myArr);
O‘zingiz sinab ko‘ring »
Brauzerlarda qo‘llab-quvvatlash
console.assert() barcha brauzerlarda qo‘llab-quvvatlanadi:
| Chrome | Edge | Firefox | Safari | Opera | IE |
| Ha | Ha | Ha | Ha | Ha | Ha |
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