validateEmptyText static method

String? validateEmptyText(
  1. String? fieldName,
  2. String? value
)

Validates if the given text is empty.

  • fieldName: The name of the field being validated.
  • value: The value entered in the field.

Returns a string error message if the field is empty, otherwise null.

Implementation

static String? validateEmptyText(String? fieldName, String? value) {
  if (value == null || value.isEmpty) {
    return '$fieldName is required.'; // Return error message if the field is empty.
  }

  return null; // Return null if the field is not empty.
}