Function observeResize

packages/@stdlib/misc/src/resize-observer.ts:19–31

(target: Element, listener: ResizeListener)

});

export function observeResize(target: Element, listener: ResizeListener) {
  let listeners = _getResizeListeners().get(target);

  if (listeners == null) {
    listeners = new Set();

    _getResizeListeners().set(target, listeners);

    _getResizeObserver()?.observe(target);
  }

  listeners.add(listener);
}

export function unobserveResize(target: Element, listener: ResizeListener) {
  const listeners = _getResizeListeners().get(target);