SharePoint - JavaScript - Get parameter from current URL

Today, just one short code snippet to read out an URL parameter with the SharePoint JavaScript libraries:

GetUrlKeyValue(parameter, noDecode, url) is a JavasSript function which we can use to get a query string parameter either from url in the browser or a url we specify.

parameter (string): Query string parameter from the url. 

noDecode (bool)(optional): Specifies whether the value has to be encoded or not. If false value is decoded, else returned as it is. 

url (string)(optional): the url from which Query string values are to be retrieved.(Optional)

Example:

alert(GetUrlKeyValue('a', false, 'www.abc.com?a=te%20sting'));
The above statement will return the value ‘te sting’ from the url paramter a. Here we are specifying our own url.


alert(GetUrlKeyValue('a', false));
The above statement will look for a query string variable a in the browser url, and returns the decoded value.


alert(GetUrlKeyValue('a'));
The above statement will look for a query string variable a in the browser url.