Prestwood IT: Associative Arrays in JavaScript (JavaScript and AJAX)

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Part of the mo. lesson in the Mar 16 Issue of Prestwood eMag

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Associative Arrays in JavaScript

An associative array links a set of unique values (keys) to another set of values (not necessarily unique). Associative arrays are also known as a dictionary or a hash table in other languages.

//Initialize array.

var MyStateList= new Array()

//Assign values.

MyStateList["CA"]="California";
MyStateList["OR"]="Oregon";
MyStateList["NV"]="Nevada";

//Use array.

Alert("OR is " + MyStateList["OR"])

More Info

Code:	Assocative Arrays in ObjectPAL
Definition:	Associative Array
FAQ:	Associative Arrays in ASP Classic
Tip:	Associative Arrays in Delphi/Object Pascal
Code:	Associative Arrays in Delphi/Object Pascal (Use TStringList)

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Code Contributed By Mike Prestwood:

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205.

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