HashMap

Key-value store with string keys.

Methods

Method	Returns	Description
HashMap.new()	map	Create empty map
set(key, val)		Set value (string)
get(key)	string	Get value ("" if missing)
has(key)	bool	Key exists
remove(key)		Delete entry
len()	int	Entry count
keys()	[string]	Array of all keys
values()	[string]	Array of all values
clear()		Remove all entries

Examples

var m = HashMap.new()
m.set("name", "Wyn")
m.set("version", "2")

println(m.get("name"))                  // Wyn
println(m.has("name").to_string())      // true
println(m.len().to_string())            // 2

Iteration

var ks = m.keys()
for k in ks {
    println("${k}: ${m.get(k)}")
}
// name: Wyn
// version: 2

Values

var vs = m.values()
for v in vs {
    println(v)
}

Global Access

HashMap variables can be accessed from functions:

var config = HashMap.new()

fn setup() {
    config.set("host", "localhost")
    config.set("port", "8080")
}

fn get_url() -> string {
    return config.get("host") + ":" + config.get("port")
}

setup()
println(get_url())  // localhost:8080