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'}
                   ];

现在我想删除 {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'}
                   ];

我应该怎么做?

最佳答案

假设您对象中的 id 字段是唯一的,您可以执行以下操作将其删除。要使用的函数是 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'}
//                          ];

关于javascript - 如何从对象数组中删除项目?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/5629914/

10-16 18:51
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