Douglas Crockford is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 computer programmer and entrepreneur, best known for his ongoing involvement in the development of the JavaScript

JavaScript

JavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles....

 language, and for having popularized the data format JSON

JSON

JSON , or JavaScript Object Notation, is a lightweight text-based open standard designed for human-readable data interchange. It is derived from the JavaScript scripting language for representing simple data structures and associative arrays, called objects...

 (JavaScript Object Notation), and for developing JSLint

JSLint

JSLint is a static code analysis tool used in software development for checking if JavaScript source code complies with coding rules. It is developed by Douglas Crockford. It is provided primarily as an online tool, but there are also command-line adaptations....

. He is currently a senior JavaScript architect at Yahoo!

Yahoo!

Yahoo! Inc. is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is perhaps best known for its web portal, search engine , Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Groups, Yahoo! Answers, advertising, online mapping ,...

, and is also a writer and speaker on JavaScript, JSON, and related web technologies such as the Yahoo! User Interface Library (YUI).
Crockford worked on the computerization of media at Atari

Atari

Atari is a corporate and brand name owned by several entities since its inception in 1972. It is currently owned by Atari Interactive, a wholly owned subsidiary of the French publisher Atari, SA . The original Atari, Inc. was founded in 1972 by Nolan Bushnell and Ted Dabney. It was a pioneer in...

, Lucasfilm

Lucasfilm

Lucasfilm Limited is an American film production company founded by George Lucas in 1971, based in San Francisco, California. Lucas is the company's current chairman and CEO, and Micheline Chau is the president and COO....

, and Paramount

Paramount Pictures

Paramount Pictures Corporation is an American film production and distribution company, located at 5555 Melrose Avenue in Hollywood. Founded in 1912 and currently owned by media conglomerate Viacom, it is America's oldest existing film studio; it is also the last major film studio still...

.