对象数组的排序

let arr = [{age:'22',name:'张三'},{age:'98',name:'李四'},{age:'10',name:'王五'}];
 

arr.sort((a,b)=>a.age-b.age);  即可实现按照年龄的升序

arr.sort((a,b)=>b.age-a.age);  即可实现按照年龄的降序