var arr = [
{id:2,date:'2010-10-03',des:'goodday'},
{id:3,date:'2011-02-13',des:'badday'},
{id:4,date:'2011-04-03',des:'niceday'}
];
现在我要删除{id:3,date:'2011-02-13',des:'badday'}
,然后arr应该是
var arr = [
{id:2,date:'2010-10-03',des:'goodday'},
{id:4,date:'2011-04-03',des:'niceday'}
];
我该怎么办?
答案 0 :(得分:15)
假设您的对象中的id字段是唯一的,您可以执行以下操作将其删除。要使用的功能是Splice:
var arr = [
{
id: 2,
date: '2010-10-03',
des: 'goodday'},
{
id: 3,
date: '2011-02-13',
des: 'badday'},
{
id: 4,
date: '2011-04-03',
des: 'niceday'}
];
for(var i=0; i<arr.length; i++){
if(arr[i].id == 3){
arr.splice(i, 1); //removes 1 element at position i
break;
}
}
console.log(arr);
//should give you
// var arr = [
// {id:2,date:'2010-10-03',des:'goodday'},
// {id:4,date:'2011-04-03',des:'niceday'}
// ];
答案 1 :(得分:1)
答案 2 :(得分:0)
arr.splice(1,1);
将移除arr[1]
处的对象,
并arr[2]
将滑入其位置。
答案 3 :(得分:0)
您可以使用过滤方法实现相同目的:
// Your array
var oArr = [
{id:2,date:'2010-10-03',des:'goodday'},
{id:3,date:'2011-02-13',des:'badday'},
{id:4,date:'2011-04-03',des:'niceday'}
];
// Array with the values to be removed, here I have taken the id
var oArrToRemove = [2]
// Using filter method to delete the object
var oNewArr = arr.filter(ele => { return remArr.indexOf(ele.id) === -1})
// The oNewArray will be as follows
oNewArr = [
{id:3,date:'2011-02-13',des:'badday'},
{id:4,date:'2011-04-03',des:'niceday'}
];