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Node.js assert.deepStrictEqual() 方法

❮ 断言模块


示例

如果两个对象或其子对象不相同(值和类型都不同),则会抛出错误并终止程序。

var assert = require('assert');
var x = { a : { n: 0 } };
var y = { a : { n: 0 } };
var z = { a : { n: '0' } };
assert.deepStrictEqual(x, y); //OK
assert.deepStrictEqual(x, z); /*AssertionError: { a: { n: 0 } } deepStrictEqual {a: { n: '0' } }*/
运行示例 »

定义和用法

assert.deepStrictEqual() 方法使用 === 运算符测试两个对象及其子对象是否相等。

如果两个对象不相等,则会引发断言失败,并终止程序。

=== 运算符测试值和类型是否相等。

要使用 == 运算符比较对象,请使用 assert.deepEqual() 方法


语法

 assert.deepStrictEqual(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 1.2.0

更多示例

示例

使用 message 参数

var assert = require('assert');
var x = { a : { n: 0 } };
var z = { a : { n: '0' } };
assert.deepStrictEqual(x, z, "我的消息在这里");
运行示例 »

❮ 断言模块

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