JS 数组排序

字符窜数组排序

var strArray = ["abc", "cds", "sdc", "afd", "fff", "kk", "k12"]; strArray.sort(); console.log(strArray);

[ ‘abc’, ‘afd’, ‘cds’, ‘fff’, ‘k12’, ‘kk’, ‘sdc’ ]

var strArray = ["abc", "cds", "sdc", "afd", "fff", "kk", "k12"]; strArray.sort((a, b) => { return b.localeCompare(a); }); console.log(strArray);

[ ‘sdc’, ‘kk’, ‘k12’, ‘fff’, ‘cds’, ‘afd’, ‘abc’ ]

对象数组排序

var socores = [ { name: 'zhangsan', socre: 40 }, { name: 'lisi', socre: 70 }, { name: 'wangwu', socre: 50 }, { name: 'xiaoming', socre: 100 }, { name: 'xiaohong', socre: 80 }, ]; socores.sort(); console.log(socores);

[ { name: ‘zhangsan’, socre: 40 }, { name: ‘lisi’, socre: 70 }, { name: ‘wangwu’, socre: 50 }, { name: ‘xiaoming’, socre: 100 }, { name: ‘xiaohong’, socre: 80 } ]

对于对象数组来说，直接进行sort()排序好像并不起作用，这时候我们就要重写sort()内部的方法，例子如下：

var socores = [ { name: 'zhangsan', socre: 40 }, { name: 'lisi', socre: 70 }, { name: 'wangwu', socre: 50 }, { name: 'xiaoming', socre: 100 }, { name: 'xiaohong', socre: 80 }, ]; socores.sort((a, b) => { return a.socre > b.socre ? 1 : -1; }); console.log(socores);

[{ name: ‘zhangsan’, socre: 40 }, { name: ‘wangwu’, socre: 50 }, { name: ‘lisi’, socre: 70 }, { name: ‘xiaohong’, socre: 80 }, { name: ‘xiaoming’, socre: 100 } ]