js 数组操作

data["survey"]=data["survey"].sort((a, b) => b.scheduledDateTime.localeCompare(a.scheduledDateTime))

 最新时间显示在最前面

 

js 删除两个数组中id相同的对象

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let arr1 = [{id:'1',name:'json'},{id:'2',name:'book'} ] let arr2 = [{id:'1',name:'json',age:'15'},{id:'2',name:'book',age:'16'},{id:'3',name:'ani',age:'17'}]  //ES6的方法 let add = arr2.filter(item => !arr1.some(ele=>ele.id===item.id)); cosnole.log(add);