Map Methods | Joa Documentation

length is a property; all others are methods.

Method / Property	Returns	Description
`map.length`	`Integer`	Number of key-value pairs
`map.keys()`	`List`	List of all keys (in insertion order)
`map.values()`	`List`	List of all values (in insertion order)
`map.has(key)`	`Bool`	Whether the given key exists
`map.remove(key)`	`null`	Removes the key-value pair; no-op if key is missing

let config = {host: "localhost", port: 8080, debug: true}

print(config.length)           // 3
print(config.keys())           // [host, port, debug]
print(config.values())         // [localhost, 8080, true]
print(config.has("port"))      // true
print(config.has("timeout"))   // false

config.remove("debug")
print(config)                  // {host: localhost, port: 8080}