TypeScript: DOM

DOM helpers reduce unsafe casts in global event handlers.

isElement(target)

Checks whether an EventTarget | null is an Element.

import { isElement } from '@micazoyolli/foundation';

document.addEventListener('click', (event) => {
  if (!isElement(event.target)) return;
  event.target.closest('[data-action]');
});

isHTMLElement(target)

Use it when you need dataset, focus() or element measurements.

KEYBOARD_KEYS

Centralizes Enter, Space and Escape.

isKeyboardActivation(event)

Returns true for keyboard activation through Enter or Space.

Focus management and scroll lock

import {
  lockBodyScroll,
  restoreFocus,
  trapTabKey,
  unlockBodyScroll,
} from '@micazoyolli/foundation';

const lock = lockBodyScroll();
trapTabKey(event, panel);
unlockBodyScroll(lock);
restoreFocus(trigger);

Accessible panel

The pattern preserves focus, locks background scroll and supports Escape.