isNumeric function

bool isNumeric(
  1. String input, {
  2. bool no_symbols = false,
})

check if the string input contains only numbers

Implementation

bool isNumeric(String input, {bool no_symbols = false}) {
  if (no_symbols) {
    return _numericNoSymbols.hasMatch(input);
  }

  return _numeric.hasMatch(input);
}