index.md

title	short-title	slug	page-type	browser-compat
TouchList: length property	length	Web/API/TouchList/length	web-api-instance-property	api.TouchList.length

{{ APIRef("Touch Events") }}

The length read-only property indicates the number of items (touch points) in a given {{domxref("TouchList")}}.

Value

The number of touch points in touchList.

Examples

This code example illustrates the use of the {{domxref("TouchList")}} interface's {{domxref("TouchList.item()","item")}} method and the {{domxref("TouchList.length","length")}} property.

const target = document.getElementById("target");

target.addEventListener(
  "touchstart",
  (ev) => {
    // If this touchstart event started on element target,
    // set touch to the first item in the targetTouches list;
    // otherwise set touch to the first item in the touches list
    const touch =
      ev.targetTouches.length >= 1
        ? ev.targetTouches.item(0)
        : ev.touches.item(0);
  },
  false,
);

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}