Programming-Idioms

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2018-06-12, 19:01:23

2018-08-03, 21:23:49

Idiom #112 Iterate over map entries, ordered by keys

Print each key k with its value x from an associative array mymap, in ascending order of k.

Print each key k with its value x from an associative array mymap, in ascending order of k.

traverse traversal

traverse traversal

for (k, x) in mymap {
    println!("({}, {})", k, x);
}

for (k, x) in mymap {
    println!("({}, {})", k, x);
}

This assumes mymap is a BTreeMap as it is sorted by the keys.

This assumes mymap is a BTreeMap as it is sorted by the keys.

https://doc.rust-lang.org/stable/std/collections/struct.BTreeMap.html#method.iter

https://doc.rust-lang.org/stable/std/collections/struct.BTreeMap.html#method.iter

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