backbone.jsHow do I initialize a view in Backbone.js?
To initialize a view in Backbone.js, you must first create a view object and then define its properties. The view object must extend the Backbone.View class, which provides the basic functionality for a view.
For example:
var MyView = Backbone.View.extend({
// Properties
el: "#view",
template: _.template("<h1>My View</h1>"),
// Initialize
initialize: function() {
this.render();
},
// Render
render: function() {
this.$el.html(this.template());
}
});
// Create a new view
var view = new MyView();
The code above will create a new view object called MyView
which is an extension of the Backbone.View
class. It sets the el
property to #view
and the template
property to a template string. It also defines an initialize
function which calls render
when the view is initialized. The render
function then sets the HTML of the view's el
to the template string. Finally, a new instance of the view is created and assigned to the view
variable.
Parts of the code and explanation:
var MyView = Backbone.View.extend({
- This creates a new view object calledMyView
which is an extension of theBackbone.View
class.el: "#view"
- This sets theel
property to#view
. This is the DOM element that the view will be attached to.template: _.template("<h1>My View</h1>")
- This sets thetemplate
property to a template string. This is the HTML that will be rendered by the view.initialize: function() {
- This defines aninitialize
function which is called when the view is initialized.render: function() {
- This defines arender
function which sets the HTML of the view'sel
to the template string.var view = new MyView();
- This creates a new instance of the view and assigns it to theview
variable.
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