es6 进行数组，数组对象 排序，降序升序
升序

let data = [

            {value: 335, name: '家电'},
            {value: 310, name: '服装'},
            {value: 274, name: '食品'},
            {value: 235, name: '数码'},
            {value: 400, name: '家纺'}
        ]

data.sort(function (a, b) { return a.value - b.value; })

降序

let data = [

            {value: 335, name: '家电'},
            {value: 310, name: '服装'},
            {value: 274, name: '食品'},
            {value: 235, name: '数码'},
            {value: 400, name: '家纺'}
        ]

data.sort(function (a, b) { return b.value - a.value; })