Remove item from array with jQuery

Remove item (number or string) from array, using jQuery (method grep).



arr = [1, 2, 3, 4, 5] // array initial
var removeItem = 2;   // item do array que deverá ser removido


arr = jQuery.grep(arr, function(value) {
        return value != removeItem;
      });


// new array

How many Drupal sites are there in the world?

How do you find "all" the Drupal sites that Google knows about?

A post on drupal.org suggests Add New Comment, but that wont be entirely accurate. So far I have come up with a search that lists all sites with a User Account page on user/login:

intitle:"User account" inurl:"user/login"

Or you can use this link to search for drupal sites in Google.
I am aware this only lists sites with user login linked to somewhere and not blocked by Robots.txt.
I have also seen suggestions that looking for a CSS file might work, however with Drupal's CSS aggregation, this could be difficult.
Please share any alternatives, my search above (currently) shows around 2,620,000  (on Google UK). How can we make this better?

How to display sub menus (children) of primary links in drupal?

Step 1 : Since we'll be using php codes in a block to display menu, the first thing to do is to enable the PHP Filter under modules.
Step 2 : Go to administer->block->add block and create a new block. Add a description (i use submenu). Choose PHP Code as the filter and paste the code below in the body textarea.

<?php
$menuItems = menu_tree_page_data('primary-links'); 

foreach($menuItems as $key => $m) {
      //check current active menu
   if ($m['link']['in_active_trail'] && $menuItems [$key]['below']) {
       $menu = menu_tree_output($menuItems [$key]['below']);
   }  
}

//print the menu
print $menu;
?>

Make sure you include the php delimiters in your code. Press save.
Step 3 : Place your block in a region you want. and that's it. next time you select a menu item in the primary links, the children menu items will show in this block.
You can use active-trail to style the selected menu item.

Alternatively, you may use Menu Block module which can do the same without writing a single line of code. Let me know if you need any guidence.

25+ Must-Have Cheat Sheets for Web Developers

Who wants to go to Google or break out the library of programming books every single time you get stuck on something? Below is a compilation of extremely useful cheat sheets, which can be printed, laminated and placed nearby for easy reference while doing your web development and design. Everyone has moments where a function cannot be remembered, and that is where these cheat sheets can be lifesavers. Bookmark this page for an easy portal to all of the cheat sheets, or an individual page if you find it helpful. Please don’t hesitate to post any cheat sheets we neglected to include, for this is about sharing knowledge. 

With Courtesy: Chris Strosser.

1. PHP

http://www.addedbytes.com/cheat-sheets/php-cheat-sheet/

2. MySQL

http://www.addedbytes.com/cheat-sheets/mysql-cheat-sheet/

3. JavaScript

http://www.addedbytes.com/cheat-sheets/javascript-cheat-sheet/

4. CSS

http://www.addedbytes.com/cheat-sheets/css-cheat-sheet/

5. Regular Expressions

http://www.addedbytes.com/cheat-sheets/regular-expressions-cheat-sheet/

6. Apache’s mod_rewrite

http://www.addedbytes.com/apache/mod_rewrite-cheat-sheet/

7. jQuery

http://acodingfool.typepad.com/blog/pdf/jquery_1.3_cheatsheet_v1.pdf

8. HTML

http://www.addedbytes.com/cheat-sheets/html-cheat-sheet/

9. HTML Character Entities

http://www.addedbytes.com/cheat-sheets/html-character-entities-cheat-sheet/

10. RGB Hex Color Codes

http://www.addedbytes.com/cheat-sheets/colour-chart/

11. .htaccess

http://www.thejackol.com/htaccess-cheatsheet/

12. Apache

http://www.petefreitag.com/cheatsheets/apache/

13. SEO

http://www.seomoz.org/blog/the-web-developers-seo-cheat-sheet

14. Gmail

http://www.marcofolio.net/cheat_sheets/gmail_keyboard_shortcuts_cheat_sheet.html

15. HTML5

http://www.smashingmagazine.com/2009/07/06/html-5-cheat-sheet-pdf/

16. Google Analytics

http://www.searchenginejournal.com/the-huge-collection-of-google-analytics-tips/7426/

17. WordPress Cheat Sheets

http://speckyboy.com/2009/06/17/14-essential-wordpress-development-and-design-cheat-sheets/

18. Subversion

http://www.addedbytes.com/cheat-sheets/subversion-cheat-sheet/

19. Eclipse

http://refcardz.dzone.com/refcardz/getting-started-eclipse?oid=hom7187

20. Google Search Engine

http://www.google.com/help/cheatsheet.html

21. Twitter

http://jasontheodor.com/2009/04/28/twitter-tweet-sheet-2/

22. CakePHP

http://cakephp.org/files/Resources/CakePHP-1.2-Cheatsheet.pdf

23. Joomla

http://www.younic.de/joomla-basic-template-cheatsheet

24. CodeIgniter

http://designfellow.com/blog/freebies/codeigniter-quick-reference-cheat-sheet-version-2-0-released/

25. Drupal

http://www.inmensia.com/files/pictures/internal/CheatSheetDrupal4.7.png

26. Firebug

http://duvet-dayz.com/firebug-cheatsheet/

Best Practices for Speeding Up Your Web Site

Yahoo's exception performance team has identified number of best practices for optimising website load time. The list includes following best practices divided into 7 categories as on Yahoo website.

CONTENT

1. Make Fewer HTTP Requests
2. Reduce DNS Lookups
3. Avoid Redirects
4. Make Ajax Cacheable
5. Postload Components
6. Preload Components
7. Reduce the Number of DOM Elements
8. Split Components Across Domains
9. Minimize Number of iframes
10. Avoid 404s

 SERVER

1. Use a Content Delivery Network (CDN)
2. Add Expires or Cache-Control Header
3. Gzip Components
4. Configure ETags
5. Flush Buffer Early
6. Use GET for Ajax Requests
7. Avoid Empty Image src

COOKIE

1. Reduce Cookie Size
2. Use Cookie-Free Domains for Components

CSS

1. Put Stylesheets at Top
2. Avoid CSS Expressions
3. Choose <link> Over @import
4. Avoid Filters

Javascript

1. Put Scripts at Bottom
2. Make JavaScript and CSS External
3. Minify JavaScript and CSS
4. Remove Duplicate Scripts
5. Minimize DOM Access
6. Develop Smart Event Handlers

IMAGES

1. Optimize Images
2. Optimize CSS Sprites
3. Do Not Scale Images in HTML
4. Make favicon.ico Small and Cacheable

MOBILE

1. Keep Components Under 25 KB
2. Pack Components Into a Multipart Document