JS如何去掉一个数组的重复元素 (数组去重)

1、思路以下：javascript 定义一个新数组，将老数组遍历一遍，再进行判断，若是新数组里面没有老数组的元素就添加，不然就不添加，最终输出整个新数组。php 2、代码以下：html var arr = ["a","a","b","b","c","c","d","e"];java var newArr = [];数组 //遍历老数组；浏览器 arr.forEach(function (val)

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