This is where, Backbone comes into play. It designs our applications in a structured manner and increases maintainability.
It is one of the most widely used frameworks and used in number of big companies like Groupon, Khan Academy, Pandora, Wordpress, and so on. Note: All the examples in this article contains jquery.
Here we are using CDN files. The following is a simple example, which shows backbone view click to display specified message when link is clicked. The Backbone. Models represent key value binding and custom events, collections provide rich API functions, views for handling events, which connect the application to backend via RESTful JSON interface and automatically save and fetches the data. Backbone views are responsible for how and what to display from our application.
It has its own DOM element which knows about its model or collection. It handles the user input events and binds the model events and model methods and renders model or collection and interacts with the user. Each view can be updated independently when model changes without reloading the whole page. It allows defining DOM events declaratively without having to worry about render function to the model into HTML using a template data.
We can create the backbone view by simply extending the existing View class of the backbone i. View which creates initial element outside of the DOM, if existing element is not provided. The hello function is always called when instantiating backbone view. A view can be instantiated using the new keyword as show below:. A view " el " is where all the event binding takes place. It tells the view which element to use as the view reference, whether they have been already created or not.
Backbone.js Overview: Developing Backbone.js examples for beginners
The DOM element can be accessed with the el property. View owner of the DOM element. The code binds the container element and any event that we trigger must be in this element. When we run the script, the specified message will get displayed using alert box as shown in the below output picture:. In the MVC pattern, models represent business entities with some business logic and business validations.
uketerinucuz.tk Overview: Developing uketerinucuz.tk examples for beginners
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- Developing uketerinucuz.tk Applications - Adnan Osmani - Google книги.
- 12 Resources for developers to Learn uketerinucuz.tk.
- Hoofprints (Gail McCarthy series Book 2).
- Developing Backbone.js Applications;
- A Battle of Sorcerers;
It can be retrieved from and saved to data storage. By using models, it is possible to validate the data, store the data, and provide access control to different parts of the data in the application. They contain bunch of data and methods for performing related operations and computations on the particular data. Models are important building blocks for developing backbone.
When we run the script, the specified message will get display using alert box as shown in the below output picture:. Model can be created simply by extending the backbone model class. Whenever we create the model, backbone will call initialize function as shown in the above example. This function can be used to add custom behavior to the model. Whenever we create instance of a model, initialize function get triggered.
We can pass parameters to the instance of the model by setting hash of attributes on the model. The value of an attribute can be set by using set method and get the value of an attribute by calling get method in the model. In the above script, we have created the model simply by extending the backbone model class. The instance of the model is created by using new keyword. Building You can build the book using make or make -f Makefile. Dependencies Make Pandoc pdflatex and recommended latex fonts Linux Debian based distros: apt-get install pandoc texlive-latex-base texlive-fonts-recommended cm-super etoolbox.
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12 Resources for developers to Learn Backbone.js
Apr 15, Fix todo style by changing id to class Dec 11, Removed npm-debug. Jan 31, Mar 31, Aug 4, Correct review text thanks to Stephen Printup for the head's up. Sep 19, Add latest builds. Jun 7, Prepared updated version of book in all formats. Jul 7,