Json数组去重

今天分享个json数组去重的笨办法,如果大家有更好的方法,可以分享下,让小颖也学习一下嘻嘻,废话不多说了先来看看代码吧~~~~~~~~~~~~~

js代码:

<script type="text/javascript">
    var obj=[{
      id:1,
      name:'张甜甜',
      age:20
    },{
      id:2,
      name:'一丢丢',
      age:22
    },{
      id:1,
      name:'张甜甜',
      age:20
    },{
      id:3,
      name:'zen',
      age:28
    },{
      id:5,
      name:'张小颖',
      age:22
    },{
      id:2,
      name:'一丢丢',
      age:22
    },{
      id:4,
      name:'五河士道',
      age:20
    }];
    for(var i=0;i<obj.length;i++){
      for(var j =obj.length - 1; j > 0; j--){
        if(obj[i].id ==  obj[j].id && i != j){
          obj.splice(j, 1);
        }
      }
    }
</script>

执行完两个  for 循环后obj=[{id: 1,name: "张甜甜",age: 20},{id: 2,name: "一丢丢",age: 22},{id: 3,name: "zen",age: 28},{id: 5,name: "张小颖",age: 22},{id: 4,name: "五河士道",age: 20}]

for循环之前

for循环后