如何在 vuejs 中防止/停止点击传播 [英] How to prevent/stop click propagation in vuejs

问题描述

我有一个递归列表(树)，每个元素都有一个 @click="sayHello(el.id)".现在的问题是，因为它是一个嵌套列表，如:

I have a recursive list (tree) and each element has a @click="sayHello(el.id)". Now the problem is, since it is a nested list like:

list-element-0-01
├──list-el-1-01
│   └──list-el-2-01
└──list-el-1-02
    └──list-el-2-02

如果我点击元素:list-el-2-01 然后我得到

If I click the element: list-el-2-01 then I get the output of

 > "list-el-2-01"
 > "list-el-1-01"
 > "list-el-0-01"

完全按照这个顺序.我的意思是我明白了，看着 html:

In exact that order. I mean I get it, looking at the html:

<ul>
  <li @click="sayHello('list-el-0-01')"> one-one

    <ul>
      <li @click="sayHello('list-el-1-01')"> two-one
        <ul>
          <li @click="sayHello('list-el-2-01')"> three-one </li> // I click this
        </ul>
      </li>

      <li @click="sayHello('list-el-1-02')"> two-two
        <ul>
          <li @click="sayHello('list-el-2-02')"> three-two </li>
        </ul>
      </li>
    </ul>

  </li>
</ul>

不知何故，我还单击了所有包装元素，这是有道理的.我的问题 - 有没有办法只让 exact 元素触发它的点击事件?

It makes sense that I am also clicking all the wrapping elements, somehow. My question - is there a way to only have the exact element fire it's click event?

推荐答案

您可以使用 .stop 事件修饰符停止传播:

You can stop propogation using the .stop event modifier as:

@click.stop="sayHello"

现在事件不会传播到父级

Now the event won't be propagated to the parent

关于事件修饰符列表的更多信息:https://vuejs.org/v2/guide/events.html#Event-Modifiers

More on the list of event modifiers: https://vuejs.org/v2/guide/events.html#Event-Modifiers

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