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Vue事件修饰符

2022-06-04 21:32:59 作者：互联网

首先回顾一下什么是事件冒泡，当鼠标点击button按钮的时候，同时也点击了div，所以showInfo1和showInfo两个函数会同时被调用

 <style>
        .a {
            height: 200px;
            background-color: skyblue;
        }
    </style>

<body>
    <div id="h1" v-on:click="showInfo1" class="a">
        <button v-on:click="showInfo">点击</button>
    </div>
    <script type="text/javascript">
        var vm = new Vue({
            el: "#h1",
            methods: {
                showInfo() {
                    alert("showInfo~")
                },
                showInfo1() {
                    alert("showInfo1~")
                }
            }
        })
    </script>
</body>

阻止事件冒泡：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="vue.js" type="text/javascript" charset="utf-8"></script>

    <style>
        .a {
            height: 200px;
            background-color: skyblue;
        }
    </style>
</head>

<body>
    <div id="h1" v-on:click="showInfo1" class="a">
        <button v-on:click.stop="showInfo">点击</button>
    </div>
    <script type="text/javascript">
        var vm = new Vue({
            el: "#h1",
            methods: {
                showInfo() {
                    alert("showInfo~")
                },
                showInfo1() {
                    alert("showInfo1~")
                }
            }
        })
    </script>
</body>

</html>

prevent阻止默认事件

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="vue.js" type="text/javascript" charset="utf-8"></script>
</head>

<body>
    <div id="h1" v-on:click="showInfo1">
        <a href="https://www.baidu.com" @click.prevent="showInfo">百度一下</a>
    </div>
    <script type="text/javascript">
        var vm = new Vue({
            el: "#h1",
            methods: {
                showInfo() {
                    alert("showInfo~")
                }
            }
        })
    </script>
</body>

</html>

标签：el,Vue,methods,修饰符,alert,showInfo,事件,showInfo1
来源： https://www.cnblogs.com/zhyjdjm/p/16342798.html