backbone.jsHow can I extend a Backbone.js application?
Extending a Backbone.js application can be done by creating custom views, models, collections, and routers.
Custom views allow you to create custom UI elements, such as a custom button or a custom form. For example, you can create a custom view with the following code:
var CustomView = Backbone.View.extend({
render: function() {
this.$el.html("<button>My Custom Button</button>");
return this;
}
});
Custom models allow you to create custom data models, such as a user model or a product model. For example, you can create a custom model with the following code:
var User = Backbone.Model.extend({
defaults: {
name: '',
age: 0
}
});
var user = new User({ name: 'John', age: 30 });
console.log(user.get('name')); // Outputs 'John'
Custom collections allow you to create custom collections of models, such as a list of users or a list of products. For example, you can create a custom collection with the following code:
var Users = Backbone.Collection.extend({
model: User
});
var users = new Users([
{ name: 'John', age: 30 },
{ name: 'Jane', age: 25 }
]);
console.log(users.length); // Outputs 2
Custom routers allow you to create custom routes, such as a route to a product page or a route to a user profile page. For example, you can create a custom router with the following code:
var Router = Backbone.Router.extend({
routes: {
'products': 'showProducts',
'users/:id': 'showUser'
},
showProducts: function() {
console.log('Showing products');
},
showUser: function(id) {
console.log('Showing user with id ' + id);
}
});
var router = new Router();
Backbone.history.start();
These are the main ways to extend a Backbone.js application. For more information, please see the official Backbone.js documentation.
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