Maps

Maps (dictionaries) are unordered key-value hash tables. Keys can be any type.

Creating Maps

let empty = {}
let user = {"name": "Riad", "age": 30, "active": True}
print(user["name"])  # => Riad

Map Methods

Method	Description
`length()`	Number of entries
`keys()`	Array of keys
`values()`	Array of values
`items()`	Array of [key, value] pairs
`has(key)`	Check if key exists
`get(key)`	Get value (Null if missing)
`copy()`	Shallow copy of map
`clear()`	Remove all entries
`pop(key)`	Remove key and return value
`setDefault(k, v)`	Set only if key missing
`update(other)`	Merge entries from another map

Examples

let m = {"a": 1, "b": 2}
print(m.length())          # => 2
print(m.has("a"))          # => True
print(m.keys())            # => ["a", "b"]
print(m.values())          # => [1, 2]
print(m.get("a"))          # => 1
print(m.get("x"))          # => Null
m.setDefault("c", 3)       # adds {"c": 3}
print(m.pop("a"))          # => 1  (removes "a")
m.update({"d": 4})         # adds {"d": 4}

Iteration

for key, value in {"name": "John", "age": 30}
    print("${key}: ${value}")
end