Example: community post comment
stateStyle, supportingText, showCount)TextArea is the multi-line extension of TextField — both share the same core API (stateStyle, supportingText, showCount, and more)Use autoResize for dynamic content where height should grow with text. Provide maxLength with showCount for constrained inputs
Don't use TextArea for single-line inputs — use TextField instead. Don't disable both resizable and autoResize simultaneously
<label htmlFor> + <textarea id>aria-invalid="true" + aria-describedby linked to supporting textaria-live="polite" when approaching limit