javascript - 从对象中查找和删除项目

Question

我有下面的数据表使用的对象，我想知道如何按名称删除项目。

例子

假设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

Answer 1

这是一个可以做到这一点的小 jsfiddle http://jsfiddle.net/wHkTS/

想法是遍历该区域并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不包含要删除的对象的数组。

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);