Programming-Idioms

History of Idiom 113 > diff from v29 to v30

Edit summary for version 30 by programming-idioms.org:
[Rust] Variable names mymap, x

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Version 29

2020-04-29, 09:36:39

Version 30

2020-05-03, 19:53:03

Idiom #113 Iterate over map entries, ordered by values

Print each key k with its value x from an associative array mymap, in ascending order of x.
Note that multiple entries may exist for the same value x.

Idiom #113 Iterate over map entries, ordered by values

Print each key k with its value x from an associative array mymap, in ascending order of x.
Note that multiple entries may exist for the same value x.

Variables

k,x,mymap

Extra Keywords

traverse traversal

Extra Keywords

traverse traversal

Rust

Rust

Code

let mut items: Vec<_> = map.iter().collect();
items.sort_by_key(|item| item.1);
for (k, v) in items {
    println!("[{},{}]", k, v);
}

Code

let mut items: Vec<_> = mymap.iter().collect();
items.sort_by_key(|item| item.1);
for (k, x) in items {
    println!("[{},{}]", k, x);
}

Demo URL

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=2523003142f55a5403061cbbc7ad028c

Demo URL

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=34dc5efca6080ba5cc6c942e0113dc46

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History of Idiom 113 > diff from v29 to v30

Version 29

Version 30

Idiom #113 Iterate over map entries, ordered by values

Idiom #113 Iterate over map entries, ordered by values

Variables

Extra Keywords

Extra Keywords

Code

Code

Demo URL

Demo URL

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