mapContains (Function)

Signature: mapContains(map: Map<string, t0>, key: string) -> bool

Description: True iff key is present in map.

Parameters

• map (Map<string, t0>): The map
• key (string): Key to find

Returns: bool

Example

print(mapContains({"a": 1}, "a"))  // true

print (mapContains (["a" => 1], "a"))  // true