この記事はまだボランティアによって 日本語 に翻訳されていません。ぜひ MDN に参加して翻訳を手伝ってください！
この記事を English (US) で読むこともできます。
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ontouchstart property of the GlobalEventHandlers mixin is an EventHandler that processes touchstart events.
Note: This attribute has not been formally standardized. It is specified in the Touch Events – Level 2 Draft specification and not in Touch Events Recommendation. This attribute is not widely implemented.
Syntax
var startHandler = someElement.ontouchstart;
Return value
startHandler- The
touchstartevent handler for elementsomeElement.
Example
This example shows two ways to use ontouchstart to set an element's touchstart event handler.
<html>
<script>
function startTouch(ev) {
// Process the event
}
function init() {
let el = document.getElementById('target1');
el.ontouchstart = startTouch;
}
</script>
<body onload="init();">
<div id="target1"> Touch me ... </div>
<div id="target2" ontouchstart="startTouch(event)"> Touch me ... </div>
</body>
</html>
Specifications
| Specification | Status | Comment |
|---|---|---|
| Touch Events – Level 2 | Draft | Non-stable version. |
Browser compatibility
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.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ontouchstart | Chrome Full support 18 | Edge ? | Firefox No support ? — 67 | IE ? | Opera ? | Safari ? | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.