threeDigitStr top-level property

String threeDigitStr
getter/setter pair

The pattern used to match strings that consist of exactly three digits.

Pattern breakdown:

  • ^ and $: Anchors to ensure the entire string is matched.
  • \d{3}: Exactly three digits from 0 to 9.

Pattern: ^\d{3}$

Implementation

String threeDigitStr = r'^\d{3}$';