ES6
骚操作,完成数组去重。
arr = [12,5,6,4,5,6,7,12,0,5,6,7,5,4,5,0]
let newarr = arr.filter((item,index,nowArr) => nowArr.indexOf(item) === index)
//数组去重
代码拆分:1
2
3
4
5let newarr = arr.filter (function (item,index,nowArr) {
return nowArr.indexOf(item) === index;
})
console.log(newarr) //[12, 5, 6, 4, 7, 0]