千峰商城-springboot项目搭建-28-vue事件修饰符
当使用v-on进行事件绑定的时候,可以添加特定后缀,设置事件触发的特性
<button type="submit" @click.prevent="事件函数">测试</button>
.prevent:消除元素的默认操作
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <link rel="stylesheet" href="css/bootstrap.css" /> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="js/bootstrap.js"></script> <script type="text/javascript" src="js/vue.js"></script> </head> <body> <div id="container"> <form action="https://www.baidu.com"> <!--.prevent:消除元素的默认操作--> <button type="submit" class="btn btn-success btn-xs" @click.prevent="test">测试</button> </form> </div> <script type="text/javascript"> var vm = new Vue({ el:"#container", data:{ }, methods:{ test:function(event){ console.log("-------test") } } }); </script> </body> </html>
.stop 阻止事件冒泡(阻止子标签向上冒泡)
.self 设置只能自己触发事件,子标签不能触发
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <link rel="stylesheet" href="css/bootstrap.css" /> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="js/bootstrap.js"></script> <script type="text/javascript" src="js/vue.js"></script> </head> <body> <div id="container"> <form action="https://www.baidu.com"> <!--.prevent:消除元素的默认操作--> <button type="submit" class="btn btn-success btn-xs" @click.prevent="test">测试</button> </form> <div style="width: 200px;height: 200px; background: red;" @click.self="method1"> <div style="width: 150px;height: 150px; background: green;" @click="method2"> <button type="button" @click.stop="method3">测试</button> </div> </div> </div> <script type="text/javascript"> var vm = new Vue({ el:"#container", data:{ }, methods:{ test:function(event){ console.log("-------test") }, method1:function(){ alert("1"); }, method2:function(){ alert("2"); }, method3:function(){ alert("3"); } } }); </script> </body> </html>
v-once 限定事件只触发一次