mapGet (Function)

Signature: mapGet(map: Map<string, t0>, key: string) -> Result<t0, Error>

Description: Returns the value associated with the key, or an error if the key is absent.

Parameters

• map (Map<string, t0>): The map to look up in
• key (string): The key to find

Returns: Result<t0, Error>

Example

match mapGet({"alice": 42}, "alice") {
    Success { value } => print(value)
    Error { message } => print(message)
}

match mapGet (["alice" => 42], "alice")
    Success value => print value
    Error message => print message