Hash
A hash, also known as an associative array, is a collection of data in which each piece of data has two components: a key and a value.
Glossary
The lingo is constantly evolving so it’s easy to lose track of definitions and their many variants. To try to help keep everyone on the same page, we’ve organized a glossary of common terms you’ll see throughout the site. Please feel free to browse the list and let us know if you have any feedback.
h
Hexadecimal
The hexadecimal (base 16) number system used for Web-page design consists of 16 unique symbols:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
Hits
Hits are the individual requests a server answers in order to render a single web page completely. The page document itself, the various images on the page, any other media files embedded there – each of these items represents a separate hit.
Hover
Hover refers specifically to when the user has positioned her cursor over a link but not yet clicked anything.
htaccess
htaccess is a Web server configuration file that contains commands known by the server that tell the server how to behave in certain instances. Some of the most common uses of an htaccess file include the capability to restrict access to certain files or directories on the Internet (or intranet) through password protection. Additionally htaccess is used to automatically redirect users, ban or allow certain IP addresses access to the server, and to call a custom designed 404 error Web rather than the standard error 404 file that usually appears in your browser. Apache Web servers, and other NCSA compliant Web servers can use htaccess.
HTTP
The conversation between browsers and servers takes place according to the hypertext transfer protocol, or HTTP. Written by Tim Berners-Lee, it was first implemented on the web in 1991 as HTTP 0.9. Currently, web browsers and servers support version 1.1 of HTTP. It supports persistent connections, meaning that once a browser connects to a web server, it can receive multiple files through the same connection.
Hyperlink
An element in an electronic document that links to another place in the same document or to an entirely different document. Typically, you click on the hyperlink to follow the link.
