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jQuery Design Patterns

jQuery Design Patterns

By : Greasidis
5 (5)
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jQuery Design Patterns

jQuery Design Patterns

5 (5)
By: Greasidis

Overview of this book

jQuery is a feature-rich JavaScript library that makes HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a variety of browsers. With a combination of versatility and extensibility, jQuery has changed the way that millions of people write JavaScript. jQuery solves the problems of DOM manipulation, event detection, AJAX calls, element selection and document queries, element attribute and data management, as well as object management utilities. This book addresses these problems and shows you how to make the best of jQuery through the various design patterns available. The book starts off with a refresher to jQuery and will then take you through the different design patterns such as facade, observer, publisher/subscriber, and so on. We will also go into client-side templating techniques and libraries, as well as some plugin development patterns. Finally, we will look into some best practices that you can use to make the best of jQuery.
Table of Contents (13 chapters)
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12
Index

Using custom event namespacing

As a closing note for this chapter, we will present, in short, the mechanism that jQuery provides for namespacing custom events. The main benefit of event namespacing is that it allows us to use more specific event names that better describe their purpose, while also helping us to avoid conflicts between different implementation parts and plugins. It also provides a convenient way to unbind all the events of a given namespace from any target (element or broker).

A simple example implementation will look as follows:

var broker = $({});
broker.on('close.dialog', function (event, message){
    console.log(event.type, event.namespace);
});
broker.trigger('close.dialog', ['messageEmitted']);
broker.off('.dialog');
// removes all event handlers of the "dialog" namespace

For more information, you can visit the documentation page at http://docs.jquery.com/Namespaced_Events and the article at https://css-tricks.com/namespaced...

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