TouchList.item()
Summary
Returns the Touch
object at the specified index in the TouchList
.
Syntax
JavaScript
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var touchPoint = touchList.item(index);
Parameters
- index
- The index of the
Touch
object to retrieve. The index is a number in the range of 0 to one less than the length of theTouchList
.
Return value
touchPoint
- The requested
Touch
object from theTouchList
. Returnsnull
if the index is not less than the length of the list.
Example
This code example illustrates the use of the TouchList
interface's item
method and the length
property.
JavaScript
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target = document.getElementById("target"); target.addEventListener('touchstart', function(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 var touch; if (ev.targetTouches.length >= 1) touch = ev.targetTouches.item(0); else touch = ev.touches.item(0); }, false);
Specifications
Specification | Status | Comment |
---|---|---|
Touch Events – Level 2 | Editor's Draft | Non-stable version. |
Touch Events | Recommendation | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 22.0 | 18.0 (18.0) | Not supported | Not supported | Not supported |
Feature | Android | Android Webview | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | 6.0 (6.0) | (Yes) | 11 | (Yes) | (Yes) |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/touchlist/item