assert.deepEqual(actual, expected[, message])

版本历史

版本	变更
v14.18.0	在旧版断言模式下，状态从弃用更改为旧版。
v14.0.0	如果双方都是 NaN，则现在 NaN 被视为相同。
v12.0.0	现在可以正确地比较类型标签，并且有一些小的比较调整使检查更少意外。
v9.0.0	现在可以正确地比较 `Error` 名称和消息。
v8.0.0	也比较 `Set` 和 `Map` 的内容。
v6.4.0, v4.7.1	现在可以正确地处理类型化数组切片。
v6.1.0, v4.5.0	现在可以将具有循环引用的对象用作输入。
v5.10.1, v4.4.3	正确地处理非 `Uint8Array` 类型的数组。
v0.1.21	新增于: v0.1.21

严格断言模式

assert.deepStrictEqual() 的别名。

旧版断言模式

稳定性: 3 - 旧版: 改为使用 assert.deepStrictEqual() 。

测试 actual 和 expected 参数之间的深度相等。考虑使用 assert.deepStrictEqual() 代替。 assert.deepEqual() 可能产生意外的结果。

深度相等意味着子对象的可枚举"自有"属性也按照以下规则递归地评估。

History

Version	Changes
v14.18.0	In Legacy assertion mode, changed status from Deprecated to Legacy.
v14.0.0	NaN is now treated as being identical in case both sides are NaN.
v12.0.0	The type tags are now properly compared and there are a couple minor comparison adjustments to make the check less surprising.
v9.0.0	The `Error` names and messages are now properly compared.
v8.0.0	The `Set` and `Map` content is also compared.
v6.4.0, v4.7.1	Typed array slices are handled correctly now.
v6.1.0, v4.5.0	Objects with circular references can be used as inputs now.
v5.10.1, v4.4.3	Handle non-`Uint8Array` typed arrays correctly.
v0.1.21	Added in: v0.1.21

Strict assertion mode

An alias of assert.deepStrictEqual().

Legacy assertion mode

Tests for deep equality between the actual and expected parameters. Consider using assert.deepStrictEqual() instead. assert.deepEqual() can have surprising results.

Deep equality means that the enumerable "own" properties of child objects are also recursively evaluated by the following rules.