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

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

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