removeAllWhiteSpaces method
Removes all whitespace characters (spaces, tabs, newlines) from the string.
@returns A new string with all whitespace removed.
Example:
final long = 'one two\nthree';
print(long.removeAllWhiteSpaces()); // "onetwothree"
Implementation
String removeAllWhiteSpaces() => replaceAll(RegExp(r'\s+'), '');