首頁猿問 js 數(shù)組里的對象去重

js 數(shù)組里的對象去重

JavaScript

幕布斯6054654 2018-10-24 09:12:41

需求是：如果數(shù)組的name相同，就比較下timestamp，哪個比較大保留哪個，小的去掉。數(shù)組如下：var arr = [ {name: "襪子", timestamp: 1537243392}, {name: "月餅", timestamp: 1537243369}, {name: "月餅", timestamp: 1537243411}, {name: "女鞋", timestamp: 1537243241}, {name: "童鞋", timestamp: 1537243204}, ];希望得到的數(shù)組結(jié)果是：var finalArr = [ {name: "襪子", timestamp: 1537243392}, {name: "月餅", timestamp: 1537243411}, {name: "女鞋", timestamp: 1537243241}, {name: "童鞋", timestamp: 1537243204}, ];

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1 回答

BIG陽

TA貢獻(xiàn)1859條經(jīng)驗獲得超6個贊

var arr = [
    {name: "襪子", timestamp: 1537243392},
    {name: "月餅", timestamp: 1537243369},
    {name: "月餅", timestamp: 1537243411},
    {name: "女鞋", timestamp: 1537243241},
    {name: "童鞋", timestamp: 1537243204},
];var obj = {};
arr.forEach(v=>{    if (!obj[v.name] || obj[v.name].timestamp < v.timestamp) obj[v.name] = v;
});console.log(Object.values(obj));

反對回復(fù) 2018-10-24