# pattern

A regular expression that a supported text control's complete value must match.

## What is **`pattern`**?

**`pattern`** — A regular expression that a supported text control's complete value must match.

Level: Apprentice · [More HTML terms at this level](https://www.ask-codey.com/glossary/subjects/html/apprentice)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/pattern