前端-vue基础39-过滤器

 

 

<!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>

 

posted @ 2022-07-23 22:30  前端导师歌谣  阅读(44)  评论(0)    收藏  举报