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fix: 修复5.1Object对象文档字符串错误 #268

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ruanyf merged 1 commit into from
Feb 4, 2024
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fix: 修复5.1Object对象文档字符串错误 #268

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2 changes: 1 addition & 1 deletion docs/stdlib/object.md
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Expand Up @@ -308,7 +308,7 @@ var obj = {};
obj.toString() // "[object Object]"
```

上面代码调用空对象的`toString`方法，结果返回一个字符串`object Object`，其中第二个`Object`表示该值的构造函数。这是一个十分有用的判断数据类型的方法。
上面代码调用空对象的`toString`方法，结果返回一个字符串`[object Object]`，其中第二个`Object`表示该值的构造函数。这是一个十分有用的判断数据类型的方法。

由于实例对象可能会自定义`toString`方法，覆盖掉`Object.prototype.toString`方法，所以为了得到类型字符串，最好直接使用`Object.prototype.toString`方法。通过函数的`call`方法，可以在任意值上调用这个方法，帮助我们判断这个值的类型。

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