Programming-Idioms

Edit summary for version 43 by freecoder:
[Rust] Added missing comma

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2018-12-17, 18:13:14

2018-12-17, 18:14:33

Idiom #8 Initialize a new map (associative array)

Declare a new map object x, and provide some (key, value) pairs as initial content.

Declare a new map object x, and provide some (key, value) pairs as initial content.

table dictionary hash

table dictionary hash

use std::collections::HashMap;

use std::collections::HashMap;

let x: HashMap<&str, i32> = [
    ("one", 1),
    ("two", 2)
].iter().cloned().collect();

let x: HashMap<&str, i32> = [
    ("one", 1),
    ("two", 2),
].iter().cloned().collect();

https://doc.rust-lang.org/std/collections/struct.HashMap.html

https://doc.rust-lang.org/std/collections/struct.HashMap.html

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=5c2558933c145e4adcb44044c8013753

https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=a4894d64bd00f4122fb7abdb7189cb09

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