Quizz: First Chapter of the Ext JS course
Mar 11, 2009 | English | By Crysfel | 4 Comments | Leer en EspañolThe first chapter of the Ext JS course is over, so it is the time to have our first evaluation.
Author: Crysfel
I'm a software developer with 6+ years of experience, when I'm not developing software I may be writing a tutorial, you can follow me on twitter
Excellent! You got the highest grade:
You had a few questions wrong, but you passed with:
I am sorry, you did not get the minimum grade, your grade is:
What are the different licenses that Ext JS has?
- Creative Commons Attribution.
- Commercial, GNU GPL, Reseller.
- Open source.
- Shareware.
Is it possible to download a customized version of Ext JS?
- Yes
- No
- I don’t know
What are the basic files that need to be imported to the HTML document so Ext JS can work correctly?
- ext.js, ext.css
- jQuery.js, ext.js, ext-all.css
- ext-all.js, ext-base.js, ext-all.css
- ext-base.js
What is the event onReady?
- It is the same as the event onLoad.
- It is the event that gets executed when the DOM is ready.
- It is the event to monitor AJAX calls to the server.
- None of the above.
How do you install new themes or skins for the components?
- I only need to copy the images and styles to the folder resources.
- By importing the style (css) of the theme before the ext-all.css
- You cannot install more themes, Ext JS only has one theme and cannot be changed.
- By importing the style (css) of the theme right after the ext-all.css
What is the Adapter pattern for?
- Allows classes to work together that normally could not because of incompatible interfaces
- To prevent the access to methods and properties of the class that it implements.
- To adapt a view.
- Is useless.
What are the libraries that Ext JS supports in order to be executed through an Adapter?
- Mootools, prototype, jQuery.
- Prototype, jQuery, YUI
- XPath, FX, jQuery.
- YUI, Scriptaculous, Dojo.
Why the Ext JS components call an external image to be used in our server, which is hosted in www.extjs.com?
- Because in this way we won’t waste bandwidth.
- Because they don’t know the correct path in our server.
- In order to get more visitors
- I don’t know
Where do you define the image “spacer” path?
- Ext.BLANK_IMAGE_URL
- Ext.IMAGE_SPACER
- Ext.CONTEXT_PATH
- Ext.BLANK_IMAGE_PATH
What happens if we don’t define the blank image in our application?
- If we don’t have access to Internet it won’t be downloaded, therefore the components won’t be displayed correctly.
- The components are displayed slower.
- If the blank image is not downloaded, the icons won’t be displayed correctly.
- All of the above
Commercial ExtJs and Sencha Touch Themes
Customized version of ExtJS is not yet available for 3.1.1 / 3.1.2 release