Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Ext JS 4 Plugin and Extension Development

You're reading from   Ext JS 4 Plugin and Extension Development This book makes it fast and fun for ExtJS developers to get to grips with developing plugins and extensions. The step-by-step instructions, with plentiful examples and code, will give you the skills in no time.

Arrow left icon
Product type Paperback
Published in Sep 2013
Publisher Packt
ISBN-13 9781782163725
Length 116 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Abdullah Al Mohammad Abdullah Al Mohammad
Author Profile Icon Abdullah Al Mohammad
Abdullah Al Mohammad
Arrow right icon
View More author details
Toc

What is a plugin?


An Ext JS plugin is a class that is used to provide additional functionalities to an existing component. Plugins must implement a method named init, which is called by the component and is passed as the parameter at the initialization time, at the beginning of the component's lifecycle. The destroy method is invoked by the owning component of the plugin, at the time of the component's destruction. We don't need to instantiate a plugin class. Plugins are inserted in to a component using the plugin's configuration option for that component.

Plugins are used not only by components to which they are attached, but also by all the subclasses derived from that component. We can also use multiple plugins in a single component, but we need to be aware that using multiple plugins in a single component should not let the plugins conflict with each other.

You have been reading a chapter from
Ext JS 4 Plugin and Extension Development
Published in: Sep 2013
Publisher: Packt
ISBN-13: 9781782163725
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image