BackboneJS - View Remove

更新于 2025/12/5 0:09:00

描述

它用于从 DOM 中删除视图，并调用 stopListening 来删除视图已 listenTo'd 的任何绑定事件。

语法

view.remove()

示例

<!DOCTYPE html>
<html>
   <head>
      <title>View Example</title>
      <script src = "https://code.jquery.com/jquery-2.1.3.min.js"
         type = "text/javascript"></script>
      
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js"
         type = "text/javascript"></script>
      
      <script src = "https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js"
         type = "text/javascript"></script>
   </head>
   
   <body>
      <div id = "mydiv"></div>
      <script type = "text/javascript">
      
         //'ViewDemo' 是视图类的名称
         var ViewDemo = Backbone.View.extend ({

            //当点击事件发生时，它会激活定义的函数"removeFunc"
            events: {
               'click button': 'removeFunc'
            },
            
            removeFunc: function () {
               //'remove()' 方法从 DOM 中删除视图
               this.remove();

               //删除视图后，长度显示为“0”
               document.write("After removing, view becomes: ",$('#mydiv').length);
            },

            //'render' 提供构造视图所需的逻辑
            render: function () {
               
               //'$el' 是缓存对象，它推送其中定义的内容，并且
               //显示用户应点击以删除视图的按钮
               this.$el.html('<button>click to remove</button>');
            },

            //实例化视图时调用此函数
            initialize:function(){this.render();}
         });

         //'myview' 是 'ViewDemo' 类的实例
         var myview = new ViewDemo({el: '#mydiv'});
      </script>
      
   </body>
</html>