<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <div id="app"> <input type="text" v-model='msg'> <div>{{msg|upper}}</div> <div>{{msg|upper|lower}}</div> <div :abc='msg|upper'>测试数据</div> </div> <script type="text/javascript" src="./js/vue.js"></script> <script> /* 侦听器 监听用户变化*/ /* Vue.filter('upper', function(val) { return val.charAt(0).toUpperCase() + val.slice(1); }); */ Vue.filter('lower', function(val) { return val.charAt(0).toLowerCase() + val.slice(1); }) var vm = new Vue({ el: '#app', data: { msg: '' }, filters: { upper: function(val) { return val.charAt(0).toUpperCase() + val.slice(1); } } }) </script> </body> </html>
