Get base url using javascript

function getBaseURL () {    return location.protocol + "//" + location.hostname +       (location.port && ":" + location.port) + "/"; }

Don’t forget to enable cache check to enable caching

To use the cache helper in any view or controller, you must first uncomment and set Configure::Cache.check to true in core.php of your app/config folder. If this is not set to true, then the cache will not be checked or created. Configure::write('Cache.check', true);

How to disable browser cache in CakePHP

use the useful callback disableCache(), that will tell the user’s browser not to cache the results of the current request. This is different than view caching. The headers sent to this effect are: Expires: Mon, 26 Jul 1997 05:00:00 GMT Last-Modified: [current datetime] GMT Cache-Control: no-store, no-cache, must-revalidate Cache-Control: post-check=0, pre-check=0 Pragma: no-cache

Get selected value text from dropdown with jquery

the fastest way to get selected value text from a dropdown is using: $('#dropdown_id').children("option:selected").text()

How to check a not defined variable in javascript

In JavaScript null is an object. There's another value for things that don't exist, undefined. The DOM returns null for almost all cases where it fails to find some structure in the document, but in JavaScript itself undefined is the value used. To check for null  if (null == yourvar) // with casting if (null …

are these functions identical

Let's see this question: //Assume function example1(){ echo 'example 1'; } //,and function example2(){ echo 'example 2'; } //True or False var_dump( ( example1() ==  example2() ) ); This will result to TRUE, but why? cause both functions example1() and example2() doesn't  return anything (doesn't have a return statement) so it is called (void) function …