javascript - 循环遍历对象数组并仅获取少数对象

Question

我有以下对象数组。

[Object, Object, Object]
    0:Object
       name: "Rick"
       Contact: "Yes"
       id: 1
    1:Object
       name:"Anjie"
       Contact:"No"
       id: 2
    2:Object
       name:"dillan"
       Contact:"Maybe"
       id:3

现在，我只想要其中的名称和联系人对象。我怎样才能得到它。另外，在其他情况下，我想要名称和 ID。有人可以告诉我如何实现这一目标吗？

例如只有姓名和联系人才能给出此结果。

[Object, Object, Object]
    0:Object
      name: "Rick"
      Contact: "Yes"
    1:Object
      name:"Anjie"
      Contact:"No"
    2:Object
      name:"dillan"
      Contact:"Maybe"

Answer 1

最简单的方法是使用 map功能:

var objs = objs.map(function(obj) {
    return {
        name: obj.name,
        Contact: obj.Contact
    }
});

或者，您可以手动循环它:

var objs = [{
       name: "Rick",
       Contact: "Yes",
       id: 1
}, {
       name:"Anjie",
       Contact:"No",
       id: 2
}, {
       name:"dillan",
       Contact:"Maybe",
       id:3
}];

var newObjs = [];

for ( var i=0, len = objs.length; i < len; i++ )
{
    newObjs.push({
        name: objs[i].name,
        Contact: objs[i].Contact
    });
}

console.log(newObjs);