Comments (1)
mqyqingfeng
commented on May 2, 2024
@xdwxls 关于 Object.prototype.toString，我们来看下规范：
我们会发现，该方法判断的其实是 this 的值，而非传入的函数的值。
如果我们在浏览器中直接使用该方法：
打印的结果之所以都是"[object Object]"，正是因为 this 的值是 window 对象。
而当我们使用 call 的时候，就是指定了 this 的值，自然就会根据规范来得出正确的结果~
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