Lookup by key

Lookup by key

Run from the repository or distribution root. Put xen on PATH, or substitute ./bin/xen.

Run

xen check examples/hashmap.xen
xen run examples/hashmap.xen

Expected output

3
2

Complete source

hashmap.xen

// SPDX-License-Identifier: MIT OR Apache-2.0
use std.hashmap as hashmap;

#![explc]
fn main() {
    let mut prices = hashmap.new<Int>();
    prices.insert("tea", 3);
    prices.insert("coffee", 4);
    let key = "tea";
    println(match prices.get_cloned(&key) {
        Option.Some(price) => price,
        Option.None => 0,
    });
    println(prices.len());
}

Download file

Build an executable

xen build examples/hashmap.xen -o app

Run the generated executable on a compatible Linux machine.