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

Revision as of 06:24, 3 August 2020

Revision as of 21:50, 4 August 2020

Line 1,674:

<syntaxhighlight lang="text">

use std::collections::HashMap;

let mut phone_book = HashMap::new();

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

Line 1,680 ⟶ 1,681:

</syntaxhighlight>

The default iterators visit all entries as tuples in an unspecified order:

Loop iterating through all the keys of the hash map:

<syntaxhighlight lang="text">

for (name, number) in &phone_book.keys() {

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

}

</syntaxhighlight>

Loop iteratingIterating through all the keys of the hash map:

To loop hrough all entries as tuples:

<syntaxhighlight lang="text">

for (name, number) in &phone_book.keys() {

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

}

</syntaxhighlight>