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96 lines
2.4 KiB
96 lines
2.4 KiB
3 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>事件修饰符</title>
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<script type="text/javascript" src="../vue.js"></script>
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<style>
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*{
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margin-top: 20px;
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}
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.demo1{
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height: 50px;
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background-color: skyblue;
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}
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.box1{
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height: 80px;
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background-color: skyblue;
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}
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.box2{
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width: 60px;
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background-color: orange;
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}
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.box3{
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height: 80px;
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background-color: blue;
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}
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.list{
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height: 200px;
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width: 200px;
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background-color: bisque;
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overflow: auto;
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}
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li{
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height: 100px;
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}
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</style>
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</head>
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<body>
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<div id="root">
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<!-- 阻止默认操作-->
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<h2>你好 {{name}}！！</h2>
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<a href="https://www.baidu.com" target="_blank" @click.prevent="showView">阻止默认操作</a>
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<!-- 停止冒泡-->
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<div class="demo1" @click="showView">
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<button @click.stop="showView">停止冒泡</button>
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</div>
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<!-- 事件只触发一次-->
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<button @click.once="showView">事件只触发一次</button>
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<!-- 事件捕获模式-->
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<div class="box1" @click.capture="showMsg(1)">
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div1
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<div class="box2" @click="showMsg(2)">
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div2
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</div>
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</div>
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<!-- self控制触发事件-->
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<div class="box3" @click.self="showInfo">
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<button @click="showInfo">self控制触发事件</button>
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</div>
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<!-- passive优先处理时间，不用等待事件绑定功能执行完毕，多用于移动端-->
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<ul @wheel.passive="demo" class="list">
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<li>1</li>
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<li>2</li>
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<li>3</li>
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<li>4</li>
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</ul>
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</div>
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<script>
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new Vue({
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el: '#root',
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data: {
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name: '哈哈'
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},
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methods: {
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showView(e){
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// e.preventDefault() // 禁用默认事件
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// e.stopPropagation() // 禁用冒泡
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alert("hahahaha!!!")
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},
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showMsg(msg){
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console.log(msg)
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},
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showInfo(e){
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console.log(e.target)
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},
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demo(){
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for (let i=0; i<=10000; i++) {
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console.log('@')
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}
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}
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}
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})
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</script>
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</body>
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</html>
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