Based on the provided text, it is difficult to determine what the website is specifically about as it seems to be coding or programming-related content. The mentioned terms and functions suggest that it could be a website related to a specific programming language like JavaScript, particularly jQuery. There are references to different types of regular expressions and variables used in coding. The site may focus on providing information, resources, or tools related to web development using jQuery and other technologies.
However, without further context or additional details from the original website content, it is challenging to provide a precise summary of what the site is truly about.
