如何从对象数组中删除所有重复项? [英] How to remove all duplicates from an array of objects?

问题描述

我有一个包含对象数组的对象.

I have an object that contains an array of objects.

things = new Object();

things.thing = new Array();

things.thing.push({place:"here",name:"stuff"});
things.thing.push({place:"there",name:"morestuff"});
things.thing.push({place:"there",name:"morestuff"});

我想知道从数组中删除重复对象的最佳方法是什么.举例来说，things.thing会变成...

I'm wondering what is the best method to remove duplicate objects from an array. So for example, things.thing would become...

{place:"here",name:"stuff"},
{place:"there",name:"morestuff"}

推荐答案

原始方法是:

var obj = {};

for ( var i=0, len=things.thing.length; i < len; i++ )
    obj[things.thing[i]['place']] = things.thing[i];

things.thing = new Array();
for ( var key in obj )
    things.thing.push(obj[key]);

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