我下面有数据表使用的对象,我想知道如何按名称删除项目。



可以说我想从下面的对象中删除sEcho,mDataProp_1和sSearch,这是遍历所有项目并检查名称的最佳方法,还是有一种更简单的方法。

[{"name":"sEcho","value":1},{"name":"iColumns","value":9},
{"name":"sColumns","value":""},{"name":"iDisplayStart","value":0},
{"name":"iDisplayLength","value":10},{"name":"mDataProp_0","value":0},
{"name":"mDataProp_1","value":1},{"name":"mDataProp_2","value":2},
{"name":"mDataProp_3","value":3},{"name":"mDataProp_4","value":4},
{"name":"mDataProp_5","value":5},{"name":"mDataProp_6","value":6},
{"name":"mDataProp_7","value":7},{"name":"mDataProp_8","value":8},
{"name":"sSearch","value":""},{"name":"bRegex","value":false},
{"name":"sSearch_0","value":""},{"name":"bRegex_0","value":false},
{"name":"bSearchable_0","value":false},{"name":"sSearch_1","value":""},
{"name":"bRegex_1","value":false},{"name":"bSearchable_1","value":false},
{"name":"sSearch_2","value":""},{"name":"bRegex_2","value":false}]


例子会很棒。

谢谢

最佳答案

这是一个小jsfiddle,它可以做到http://jsfiddle.net/wHkTS/

想法是遍历该区域,将要删除的名称与当前迭代的对象名称进行比较,并基本上构建一个新数组以分配回去,其中不包含要删除的对象。

var data = [
        {"name":"sEcho","value":1},{"name":"iColumns","value":9},
        {"name":"sColumns","value":""},{"name":"iDisplayStart","value":0},
        {"name":"iDisplayLength","value":10},{"name":"mDataProp_0","value":0},
        {"name":"mDataProp_1","value":1},{"name":"mDataProp_2","value":2},
        {"name":"mDataProp_3","value":3},{"name":"mDataProp_4","value":4},
        {"name":"mDataProp_5","value":5},{"name":"mDataProp_6","value":6},
        {"name":"mDataProp_7","value":7},{"name":"mDataProp_8","value":8},
        {"name":"sSearch","value":""},{"name":"bRegex","value":false},
        {"name":"sSearch_0","value":""},{"name":"bRegex_0","value":false},
        {"name":"bSearchable_0","value":false},{"name":"sSearch_1","value":""},
        {"name":"bRegex_1","value":false},{"name":"bSearchable_1","value":false},
        {"name":"sSearch_2","value":""},{"name":"bRegex_2","value":false}
    ];

function remove(name) {

    var arr = [], len, i;

    // we reset len as data.length will change after erach remove
    for(i = 0, len = data.length; i < len; i++) {
        if (data[i].name != name) arr.push(data[i]);
    };

    data = arr;
};

console.log(data);
remove('sEcho');
console.log(data);

关于javascript - 查找和删除对象中的项目,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10319690/

10-11 22:47
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