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js——arguments的使用
2022-07-01 22:27:00 【yzhSWJ】
当我们不确定有多少个参数传递的时候,可以用 arguments来获取,在js中,arguments实际上它是当前函数的一个内置对象。虽有函数都内置了一个arguments的对象,arguments对象中存储了传递的所有实参。
arguments展示形式是一个伪数组,因此可以进行遍历,伪数组具有以下特点:
具有length属性
按索引方式存储数据
不具有数组的push,pop等方法
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