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javascript ES6语法糖:函数…省略号参数
如果一个函数的最后一个形参是以 … 为前缀的,则在函数被调用时,该形参会成为一个数组,数组中的元素都是传递给该函数的多出来的实参的值。 在上例中,theArgs 会包含传递给函数的从第三个实参开始到最后所有的实参 (第一个实参映射到 a, 第二个实参映射到 b ...
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