Maturity of Backbone framework doesn’t lie just in its release date. It’s all about usefulness and popularity. How many successful projects have been done with it? How it advances development process? And how does it help to end large complex applications? Finally, it concerns regular updates, community and evolving.
So, Backbone is truly an amazing choice to solve and prevent most of problems and pitfalls that hide into unstructured codes in web apps and website development.
What is Backbone.Js?
What is Backbone.Js?
- Models with key-value binding and custom events.
- Views with declarative event handling.
- Collections with a rich API of enumerable functions.
- computer properties.
- access control.
Views are designed to render required data from models. However, they also may be independent empty data-less tablets of the user interface. Meantime models should be normally connected to views. Besides, views should react on connected models change events, and react and render themselves according to action tasks.
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The main idea of views to logical structures is app interface. Moreover, they are backed by models that may be updated separately if any changes occur, without needs of reworking the whole page in total. It saves a developer from searching JSON objects in an app code when DOM elements need to be found. Hence, the view simply shows all pinned models and where they are displayed in UI.
Collections are complicated with groups of models and help manage them easily. Collections provide web app developers with control over loading and saving new models to the server and simplify performance aggregation or copulation in the model lists. They allow a developer to notificate:
- “change” event, while one of models has been modified.
- “add” and “remove” events fetch the whole models collections from the server side.
- observe any specific change of selected models, or the whole collections.
Moreover, in spite of standard collection events, they all may be affected by any model events.
- On event.
- Off event.
- Trigger event.
Router provides options to route the client side of web app and manage it with actions and events. Few years earlier that function made only hash fragments like #page. But now, when Backbone History API is supported by many browsers all url types may be used easily in their standard forms. All links are routed by one single API.
- URL links.
- Shareable links.
As we have mentioned above, Backbone History provides developers with track feature of the history and matches the appropriate route. It launches callbacks to control events and enables routing in the web app. In this case developers have no need to create any special event, because History has already them:
- Hashchange events.
Sync is the fundamental function of Backbone that allows to check and save the model to the server site of a web app. Normally it would use ajax action in order to make RESTful JSON request to return jqXHR. On the other hand, a developer may override it to use another suitable app for project strategies:
- XML transport.
- Local Storage.
So, Backbone Sync consists of:
- Method such as “read’, “create”, “update’ or “delete” actions.
- Model that should be saved.
- Options – successful and error callbacks as well as any other jQuery request options.