Comparison of programming languages (associative array): Difference between revisions

Revision as of 15:39, 4 January 2011

Revision as of 01:10, 20 January 2011

Line 1,031:

array_map (Void_Type, &vmessage, "%s %s", keys[i], vals[i]);

</source>

===Scala===

[[Scala (programming language)|Scala]] provides a immutable Map class as part of the scala.collection framework:

<source lang="scala">

val phonebook = Map("Sally Smart" -> "555-9999",

"John Doe" -> "555-1212",

"J. Random Hacker" -> "553-1337")

</source>

Scala's type inference will work out that this is a <code>Map[String, String]</code>. To access the array:

<source lang="scala">

phonebook.get("Sally Smart")

</source>

This returns an Option type, Scala's equivalent of a [[Monad_(functional_programming)#Maybe_monad|the Maybe monad]] in Haskell.

===Smalltalk===