vue实现全选和反选功能

时间:2020-05-16 mystraight 人气:0

本文实例为大家分享了vue实现全选反选功能的具体代码，供大家参考，具体内容如下

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<script type="text/javascript" src = "vue.js"></script>
<body>
    <div id = "test">
      <input type='checkbox' v-model="checkBox.checked" class='input-checkbox' @click='checkedAll'>全选
      <div v-for='checkb in checkboxData'>
        <input  type='checkbox' class='input-checkbox' @click="checkItem" v-model='checkBox.items[checkb.id]'>
        {{checkb.value}}
      </div>

    </div>

</body>
<script>
  var vue = new Vue({
    el:"#test",
    data:{
      checkboxData:[
      {
        id:'1',
        value:'苹果'
      },{
        id:'2',
        value:'荔枝'
      },{
        id:'3',
        value:'香蕉'
      },{
        id:'4',
        value:'火龙果'
      }
      ],
      checkBox:{
        checked:false,
        items:{}
      }

    },
    methods:{
      checkedAll: function() {
        var _this = this;
        console.log(_this.checkboxData);
        console.log(this.checkBox.items);
        this.checkboxData.forEach(function (item) {
          console.log(item.id);
          _this.checkBox.items[item.id] = _this.checkBox.checked;
          console.log(_this.checkBox.items);
        });
        //实现反选

      },
      checkItem:function(){
        var unchecked = 0;
        var _this = this;
        this.checkboxData.forEach(
          function(item) {
            unchecked += (! _this.checkBox.items[item.id]) || 0;
          });
        _this.checkBox.checked = unchecked > 0 ? false : true;
      }

    }

  })
</script>

</html>

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