subscript(_:)
Reads and writes the value associated with the given key as a string.
Declaration
subscript(key: String) -> String? { get set }Parameters
- key:
The key the look up in the dictionary.
Return Value
The value associated with key in the dictionary; otherwise, nil.
Discussion
When setting a String value, the string’s bytes are always copied. The underlying C string is assumed to be encoded as UTF-8.