Backbone.js remove View

Last Updated : 03 Aug, 2022

Backbone.js is a compact library used to organize JavaScript code. An MVC/MV* framework is another term for it. If MVC is unfamiliar to you, it simply refers to a technique for designing user interfaces. The creation of a program's user interface is made considerably easier by JavaScript functions. BackboneJS provides a variety of building elements to aid developers in creating client-side web applications, including models, views, events, routers, and collections.

View's Remove method is mainly used to delete a view from the DOM. When this function is triggered it in return triggers the stopListening function which stops the view to call the events which the view earlier listenTo'd.

Syntax:

view.remove()

Example 1: The code below demonstrates how to Remove a view by clicking on a button and triggering the remove method.

HTML

<!DOCTYPE html>
<html>

<head>
    <title>Backbone.js remove View</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>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>

    <h3>Backbone.js remove View</h3>
    <div id="mydiv"></div>

    <script type="text/javascript">
        var ViewDemo = Backbone.View.extend({
            events: {
                'click input': 'removeFunc'
            },
            removeFunc: function () {
                myView.remove();
                document.write("The View has been removed.")
            },
            render: function () {
                this.$el.html(
'<input type="button" value="Click to remove this view"></input>');
            },
            initialize: function () { this.render(); }
        });
        var myView = new ViewDemo({ el: '#mydiv' });  
    </script>
</body>

</html>

Output:

Example 2: The code below demonstrates how you can trigger the remove method of a View from another view.

HTML

<!DOCTYPE html>
<html>

<head>
    <title>Backbone.js remove View</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>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>

    <h3>Backbone.js remove View</h3>
    <div id="mydiv_1"></div>
    <div id="mydiv_2">
    </div>

    <script type="text/javascript">
        var ViewDemo = Backbone.View.extend({
            events: {
                'click button': 'removeFunc'
            },
            removeFunc: function () {
                myview_1.remove();
            },
            render: function () {
                this.$el.html(
'<button>Click to remove the view below</button>');
            },
            initialize: function () { this.render(); }
        });
        var ViewDemo_1 = Backbone.View.extend({
            events: {
                'change input': 'removeFunc'
            },
            removeFunc: function () {
                myview.remove();
            },
            render: function () {
                this.$el.html(
'Enter Some Text to remove the delete the above view <input type="text"></input>');
            },
            initialize: function () { this.render(); }
        });
        var myview = new ViewDemo({ el: '#mydiv_1' });
        var myview_1 = new ViewDemo_1({ el: '#mydiv_2' });  
    </script>
</body>

</html>

Output:

Reference: https://backbonejs.org/#View-remove

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