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Js数组去重

宁静的猫 2022-07-12 阅读 210


set方法去重

var list = [111, 111, 222, 333]
let set = Array.from(new Set(list))
console.log(set)

filter方法去重

var array = [{ name: "aa" }, { name: "aa" }, { name: "bb" }]
const res = new Map();
var filter = array.filter((item) => !res.has(item.name) && res.set(item.name, 1))
console.log(filter)


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