You can check if a String is blank by using the .isBlank method.

The difference is that an empty String has actually zero characters. A blank String can have characters, so long as those characters are what we would consider whitespace. That is, things like spaces and newlines.

void main() {
    String brainSounds = """
              
             

        """;

    // false
    IO.println(brainSounds.isEmpty());

    // true
    IO.println(brainSounds.isBlank());
}