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javascript - Use vue.js to achieve the effect: click li, get the html value of the current click li, and the parameter this becomes the window object?

曾經(jīng)蠟筆沒有小新 2017-06-14 10:54:14

1061

The effect to be achieved:

Click li to get the html value of the currently clicked li;

Main code

<body>
<p id="page">
    <ul>
        <li v-on:click="aa(this)" v-for="item in items">{{item}}</li>
    </ul>
</p>
<script type="text/javascript">
new Vue({
  el: '#page',
  data: {
        items:[11,22,33,44]
  },
  methods:{
    aa:function(obj){
        console.log(obj);  //打印出來的是 window對(duì)象？
        alert(obj.html());   //找不到點(diǎn)擊的值；
    }
  }
})
</script>
</body>

Problem Description:

The this passed after clicking li is printed as the window object, not the li object, so the object cannot be found; how to pass the current li object to js?

曾經(jīng)蠟筆沒有小新

reply all(4)

小葫蘆2017-06-14 10:56:14 4 floor

Read the documentation carefully...don't make assumptions about these inexplicable usages.

When an inline event needs to access the original event object, just add the $event parameter to it. Like this:

<li v-on:click="aa($event)" v-for="item in items">{{item}}</li>

To get the object of the current li tag, just read the currentTarget attribute under the event object, that is, event.currentTarget.

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女神的閨蜜愛上我2017-06-14 10:56:14 3 floor

<li @click="aa(item)" v-for="item in items">{{item}}</li>

aa(item) {
  console.log(item) // 當(dāng)前l(fā)i的內(nèi)容
}

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左手右手慢動(dòng)作2017-06-14 10:56:14 2 floor

Add a ref attribute to li and then get the dom node through this.$refs in methods

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typecho2017-06-14 10:56:14 1 floor

Test possible:

<li @click="aa($event)" v-for="item in items">{{item}}</li>

  methods:{
    aa:function(event){
        console.log(event.target.innerHTML);
    }
  }

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