#Backbone js patterns code#
Basic components of Backbone.js Using Underscore.js Re-using code with extensions Understanding JavaScript mixins Summary 2. making views easily reusable in other parent views. Backbone.js Patterns and Best Practices Credits.The template returns its markup after using the model’s title and completed flag to evaluate the expressions containing them.Ī common Backbone convention is to return this at the end of the render(). The render() method uses this template by passing it the toJSON() method. Basic knowledge of Backbone.js and JavaScript is essential. This book is for JavaScript developers who work with Backbone.js and want to learn the best design patterns to develop complex web applications. In the TodoView, we’re passing the markup from the template with id item-template to _.template to be compiled and stored in the todoTpl property. This is a step-by-step guide to design patterns, best practices, and solutions to common problems for Backbone.js-based application development. The _.template method in Underscore compiles Javascript templates into functions which can be evaluated for rendering. SetElement will create a cached $el reference for us, moving the delegated events of the view from the old to the new one.
Overriding this.el needs to both change the DOM reference and re-bing the event to the new element, as well as unbind them from old one. So far, we have published 3 Backbone. It helps to organize your code and develop single-page web application. Backbone.js is a lightweight JavaScript library based on the modelviewpresenter (MVP) application design paradigm. If we need to apply an existing Backbone view to a different DOM element setElement can be used. Backbone.js Tutorials - For Beginners & Advanced Developers. Note: When declaring a View, options, el, tagName, className and id may be defined as functions, if we want their values to be determined at runtime.
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