TouchList: item()-Methode
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Syntax
js
item(index)
Parameter
Rückgabewert
touchPoint
-
Das angeforderte
Touch
-Objekt aus derTouchList
. Gibtnull
zurück, wenn der Index nicht kleiner als die Länge der Liste ist.
Beispiele
Dieses Codebeispiel veranschaulicht die Verwendung der item
-Methode der TouchList
-Schnittstelle und der length
-Eigenschaft.
js
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,
);
Spezifikationen
Specification |
---|
Touch Events # dom-touchlist-item |
Browser-Kompatibilität
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
item |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Has more compatibility info.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.