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GitHub
6 年
JavaScript 中 this 的绑定规则 #39
当函数作为对象里的方法被调用时,它们的 this 是调用该函数的对象。 同样,this 的绑定只受最靠近的成员引用的影响。在下面的这个例子中,我们把一个方法 g 当作对象 o.b 的函数调用。在这次执行期间,函数中的 this 将指向 o.b。事实证明,这与他是对象 o 的 ...
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