var newArr = arr.reduce(function (prev, cur) { prev.indexOf(cur) === -1 && prev.push(cur); return prev; },[]);我才知道&&还能这么用,如果短路那我就可以理解了
var newArr = arr.reduce(function (prev, cur) { prev.indexOf(cur) === -1 && prev.push(cur); return prev; },[]);
posted on 2020-03-19 15:08 老白菜菜 阅读(253) 评论(0) 编辑 收藏 举报
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