json数组按某字段排序

代码

var fun = (arr, key, decrease = false) => {
                arr.sort((a, b) => (decrease ? 1 : -1) * (a[key] - b[key]));
                return arr;
            }

测试

 var obj = [{
                name: "hahh",
                age: 15
            }, {
                name: "hahh",
                age: 12
            }, {
                name: "hahh",
                age: 13
            }, {
                name: "hahh",
                age: 17
            }, {
                name: "hahh",
                age: 18
            }, {
                name: "hahh",
                age: 12
            }, {
                name: "hahh",
                age: 14
            }, ]
            var fun = (arr, key, decrease = false) => {
                arr.sort((a, b) => (decrease ? 1 : -1) * (a[key] - b[key]));
                return arr;
            }
            console.log(fun(obj, "age"))