これは、DOMからビューを削除するために使用され、 stopListening を呼び出して、ビューが listenTo’d しているバインドされたイベントを削除します。
view.remove()<!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' is a name of the view class
var ViewDemo = Backbone.View.extend ({
//When click event occurs it activates the defined function 'removeFunc'
events: {
'click button': 'removeFunc'
},
removeFunc: function () {
//the 'remove()' method removes the view from the DOM
this.remove();
//After removing the view, it shows length as '0'
document.write("After removing, view becomes: ",$('#mydiv').length);
},
//'render' provides the logic required to construct the view
render: function () {
//'$el' is cached object that push the content defined within it and
//display the button which should clicked by the user to remove the view
this.$ell('<button>click to remove</button>');
},
//This function is called when the view is instantiated
initialize:function(){this.render();}
});
//'myview' is an instance of the 'ViewDemo' class
var myview = new ViewDemo({el: '#mydiv'});
</script>
</body>
</html>上記のコードがどのように機能するかを確認するために、次の手順を実行してみましょう-
