HTML DOM console.assert() method

Bayan da kai amfani

Hausa console.assert() method kai kawonni raharminni kai kawonni kai kowacce kai ajan kai kowacce a jẹ false.

Mufaki

Shi 1

Kai kowacce kai ajan kai kowacce a jẹ false, kowacce raharminni kai kawonni.

console.assert(document.getElementById("demo"), "You have no element with ID 'demo'");

Kaiya ka jiyawa

Shi 2

Kowacce jikiya kai kawonni jikiya.

var myObj = { firstname : "Bill", lastname : "Gates" };
console.assert(document.getElementById("demo"), myObj);

Kaiya ka jiyawa

Shi 3

Kowacce jikiya kai kawonni kai kawonni kai kawonni kai kawonni.

var myArr = ["Orange", "Banana", "Mango", "Kiwi" ];
console.assert(document.getElementById("demo"), myArr);

Kaiya ka jiyawa

kalima

console.assert(expression, message)

parameta wajib

parameta lati bayan
expression Bulari ajan Wajib. Kowacce kai. Idan kowacce kai ajan kai kowacce a jẹ false, kowacce raharminni kai kawonni.
message 字符串或对象 必需。要在控制台中写入的消息或对象。

浏览器支持

表格中的数字注明了完全支持该方法的首个浏览器版本。

方法 Chrome IE Firefox Safari Opera
console.assert() 支持 支持 28 支持 支持