Map Operations with ard/map

The ard/map module provides utility functions for working with maps.

Note

The ard/map module is a prelude module. It is automatically imported and aliased as Map in all programs, allowing methods to be accessed with the Map:: namespace (e.g., Map::new()).

The map module provides:

• Map creation with Map::new() for easily initializing empty maps

use ard/map

fn main() {
  let config: [Str:Str] = Map::new()
}

API

fn new() [Str:$V]

Create a new empty map with string keys. The value type must be explicitly specified.

use ard/map

// Create an empty string-to-string map
let map1: [Str:Str] = Map::new()

// Create an empty string-to-int map
let map2: [Str:Int] = Map::new()

Examples

Initialize an Empty Map

use ard/map
use ard/io

fn main() {
  let config: [Str:Str] = Map::new()
  config.set("host", "localhost")
  config.set("port", "8080")

  io::print(config.at("host"))  // localhost
}

Build a Configuration Map

use ard/map

fn main() {
  let settings: [Str:Str] = Map::new()
  settings.set("theme", "dark")
  settings.set("language", "en")
  settings.set("timezone", "UTC")
}

Create a Lookup Table

use art/map

fn main() {
  let status_codes: [Str:Int] = Map::new()
  status_codes.set("ok", 200)
  status_codes.set("created", 201)
  status_codes.set("bad_request", 400)
  status_codes.set("unauthorized", 401)
  status_codes.set("not_found", 404)
}