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Associative Array (C# and JavaScript Cross Reference Guide)

By Mike Prestwood

C# versus JavaScript: A side by side comparison between C# and JavaScript.

 
Data Structures
 

Data structures allow you to store and work with data. Common data structures include arrays, associative arrays, etc.

Associative Array

[Other Languages] 
A set of unique keys linked to a set of values. Each unique key is associated with a value. Think of it as a two column table. MyArray['CA'] = 'California' MyArray['AR'] = 'Arizona'

Languages Focus

Associative arrays are also known as a dictionary or a hash table in other languages.

C#:   Dictionary
Syntax Example:
//using System.Collections.Generic;
 
Dictionary <String, String> airports = new Dictionary <String, String>();
airports.Add("LAX", "Los Angeles"); 
airports.Add("SFO", "San Francisco");
airports.Add("SAN", "San Diego");
MessageBox.Show(airports["LAX"]);
JavaScript:   Array(), use [
Syntax Example:
var MyStateList= new Array()
MyStateList["CA"]="California";
MyStateList["OR"]="Oregon";
Alert("OR is " + MyStateList["OR"])












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