lengthLtEq static method

String? lengthLtEq(
  1. String? checkValue,
  2. int ltEq, {
  3. String? errorMessage,
})

Checks that the length of checkValue is less then or equal to ltEq

If checkValue is not null and checkValue.length is not less than or equal to ltEq than errorMessage is returned if provided, else the default is provided. Otherwise null is returned

Implementation

static String? lengthLtEq(String? checkValue, int ltEq,
    {String? errorMessage}) {
  if (checkValue != null && !(checkValue.length <= ltEq)) {
    return errorMessage ?? "Field length not less than or equal too $ltEq";
  }
  return null;
}