backbone.jsHow can I use Backbone.js to solve a specific problem?
Backbone.js is a JavaScript library that provides structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface. It is a great tool to use when developing single page applications (SPAs).
For example, if you wanted to create a to-do list application, you could create a model for each to-do item, a collection to store all the to-do items, and a view to render the list of to-dos.
// Model
var Todo = Backbone.Model.extend({
defaults: {
title: '',
completed: false
}
});
// Collection
var TodoList = Backbone.Collection.extend({
model: Todo
});
// View
var TodoView = Backbone.View.extend({
tagName: 'li',
template: _.template("<%= title %>"),
render: function(){
this.$el.html( this.template( this.model.toJSON() ) );
return this;
}
});
Then, you could create an instance of the collection and view.
// Create a collection
var todos = new TodoList();
// Create a view
var todoView = new TodoView({ model: todos });
Finally, you can use the add
method to add to-dos to the collection and render the view.
// Add a to-do
todos.add({ title: 'Do laundry' });
// Render the view
todoView.render();
The output of the above code would be an li
element with the text "Do laundry".
Helpful links
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