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

Revision as of 00:53, 3 August 2020

Revision as of 06:02, 3 August 2020

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Ruby also supports many other useful operations on hashes, such as merging hashes, selecting or rejecting elements that meet some criteria, inverting (swapping the keys and values), and flattening a hash into an array.

===Rust===

[[Rust (programming language)|Rust]] has a hash map:

<syntaxhighlight lang="text">

use std::collections::HashMap;

let mut phone_book = HashMap::new();

phone_book.insert("Sally Smart", "555-9999");

phone_book.insert("John Doe", "555-1212");

phone_book.insert("J. Random Hacker", "555-1337");

</syntaxhighlight>

You can also loop through an associated array in a number of ways:

<syntaxhighlight lang="text">

for (name, number) in &phone_book {

println!("{} {}", name, number);

}

</syntaxhighlight>

===S-Lang===