isChar property
bool Function(String cc, {bool digit = false, bool lower = false, String? match, bool upper = false, bool whitespace = false})
isChar
final
Returns whether the character matches the specified conditions.
ccis the character to test.digitspecifies if it matches digit.upperspecifies if it matches upper case.lowerspecifies if it matches lower case.whitespacespecifies if it matches whitespace.matchspecifies a string of characters that are matched (aka., allowed).
Implementation
static final isChar = util.isChar;