数组对象排序

2018-06-29 本文已影响0人苦瓜_6

function sortByKey(arr, key){
      return arr.sort(function(a,b){
         let x = a[key];
         let y = b[key];
         return ((x<y)?-1:((x>y)?1:0))
        })
    }

let  cats = [
            {name: 'Arya' ,age: 10},
            {name: 'Winne' ,age: 5}
          ];