minLength static method

String? minLength(
  1. String? value, {
  2. String? message,
  3. required int length,
})

Check if the value's length is more than or equal to the given minimum length.

Implementation

static String? minLength(String? value, {String? message, required int length}) =>
    value == null || value.isEmpty || value.length >= length ?  null : message ?? 'Please enter an input of at least $length characters';