Understanding the HTML5 Canvas Context
An HTML-defined web page can have multiple Canvas areas. Each Canvas has an associated context. The ID defined in the <canvas> tag is used in JavaScript code to identify a Canvas and its associated context. Contexts are referenced using dot syntax notation. Here is an example: contextName.save().
getElementById("canvasName")
getContext("2d")
save()
restore()
Web Design & Development Glossary
AJAX
asynchronous JavaScript and XML. A technique used in web page development.
Web Design & Development Glossary
API
application programming interface. A set of rules programs use to communicate with each other.
Web Design & Development Glossary
color stop
A special element that indicates a color to be added to a gradient.
Web Design & Development Glossary
FTP
File Transfer Protocol. A network protocol useful for transferring files in a client-server relationship.
Web Design & Development Glossary
HTML
HyperText Markup Language. The predominant language for building web pages.
Web Design & Development Glossary
HTTP
HyperText Transfer Protocol. The primary networking language for the Internet.
Web Design & Development Glossary
PHP
PHP Hypertext Processor. A scripting language that works well within HTML.
Web Design & Development Glossary
socket
A technology that allows remote computers to maintain a persistent connection in order to communicate with each other.
Web Design & Development Glossary
sprite
An graphic object on a web page that will be manipulated in real time.
Web Design & Development Glossary
SQL
Structured Query Language. A programming language useful in managing relational databases.
Web Design & Development Glossary
stateless protocol
An Internet procedure that completely breaks the connection between the client and the server after a transaction, meaning that the next transaction will require an entirely new connection.
Web Design & Development Glossary
Telnet
A network protocol useful in interactive, text-oriented communications.
Web Design & Development Glossary
W3C
World Wide Web Consortium. The organization that sets international standards for the World Wide Web.
