Function incrementNumInput

src/index.ts:560–572

* Increments/decrements the value of input associ- * ated with the up/down arrow by dispatching an * "increment" event on the input. * * @param {Event} e the click event * @param {Number} delta the diff (usually 1 or -1) * @param {Element} inputElem the input element

(
    e: KeyboardEvent | MouseEvent | undefined,
    delta: number,
    inputElem?: HTMLInputElement
  )

   * @param {Element} inputElem the input element
   */
  function incrementNumInput(
    e: KeyboardEvent | MouseEvent | undefined,
    delta: number,
    inputElem?: HTMLInputElement
  ) {
    const target = e && (getEventTarget(e) as Element);
    const input =
      inputElem ||
      (target && target.parentNode && target.parentNode.firstChild);
    const event = createEvent("increment") as IncrementEvent;
    event.delta = delta;
    input && input.dispatchEvent(event);
  }

  function build() {
    const fragment = window.document.createDocumentFragment();