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BackboneJS - View Remove
Description
It is used to remove the view from the DOM and calls stopListening to remove any bound events that the view has listenTo'd.
Syntax
view.remove()
Example
<!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.$el.html('<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>
Output
Let us carry out the following steps to see how the above code works −
Save the above code in the remove.htm file.
Open this HTML file in a browser.
backbonejs_view.htm
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