Konsol menegaskan()
Contoh
Tulis pesan ke konsol:
console.assert(x + y == 11, "Expression returned false");
Tulis objek ke konsol:
const myObj = {firstname:"John", lastname:"Doe"};
console.assert(x + y == 11, myObj);
Lebih banyak contoh di bawah ini.
Definisi dan Penggunaan
Metode assert()
ini menulis pesan ke konsol jika ekspresi bernilai false
.
Sintaksis
console.assert(expression, message)
Parameter
Parameter | Description |
expression | Required. Any expression. If the expression evaluates to false , a message
is written in the console. |
message | Required. The message to write in the console. |
Lebih Banyak Contoh
Periksa elemen:
console.assert(document.getElementById("demo"), "You have no element with ID 'demo'");
Tulis array ke konsol:
const myArr = ["Orange", "Banana", "Mango", "Kiwi" ];
console.assert(x + y = 11, myArr);
Dukungan Peramban
console.assert()
didukung di semua browser:
Chrome | IE | Edge | Firefox | Safari | Opera |
Yes | Yes | Yes | Yes | Yes | Yes |