示例展示了基本概念

Created: November-22, 2018
以下示例是對以下內容的介紹：
使用下劃線的模板編譯
訪問模板中的變數
建立檢視
渲染檢視
顯示檢視
<html>
<head>
    <script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.3.3/backbone-min.js"></script>
</head>
<body>

    <div id="example_container"></div>

    <script type="text/template" id="example_template">
        <label><%= example_label %></label>
        <input type="text" id="example_input" />
        <input type="button" id="example_button" value="Search" />
    </script>
    <script type="text/javascript">
        var ExampleView = Backbone.View.extend({
            // Compile the template using underscore
            template: _.template($("#example_template").html()),
            events: {
                "click #example_button": "onButtonClick"
            },

            initialize: function(options) {
                this.customOption = options.customOption;
            },

            render: function() {
                // Load the compiled HTML into the Backbone "el"
                this.$el.html(this.template({
                    example_label: "My Search"
                }));

                return this; // for chaining, a Backbone's standard for render
            },

            onButtonClick: function(event) {
                // Button clicked, you can access the button that 
                // was clicked with event.currentTarget
                console.log("Searching for " + $("#example_input").val());
            }
        });
        $(function() {
            //show the view inside the div with id 'example_container'
            var exampleView = new ExampleView({
                el: $("#example_container"),
                customOption: 41,
            });
            exampleView.render();
        });
    </script>
</body>
</html>