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Node.js assert.equal() 方法

❮ Assert 模块


示例

如果两个值不相等,则抛出一个错误并终止程序。

var assert = require('assert');
assert.equal(50, 50); //OK
assert.equal(50, "50"); //OK
assert.equal(50, 70); /*AssertionError: 50 == 70 */
运行示例 »

定义和用法

assert.equal() 方法使用 == 运算符测试两个值是否相等。

如果两个值不相等,则会导致断言失败,并终止程序。

要使用 === 运算符比较值,请使用 assert.strictEqual() 方法


语法

 assert.equal(value1, value2, message);

参数值

参数 描述
value1 必需。指定要比较的第一个值。
value2 必需。指定要比较的第二个值。
message 可选。指定要分配给 AssertionError 的错误消息。如果省略,则分配默认消息。

技术细节

返回值
Node.js 版本 0.1.21

更多示例

示例

使用 message 参数

var assert = require('assert');
assert.equal(50, 70, "My message goes here");
运行示例 »

❮ Assert 模块

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