TouchEvent.altKey
Summary
A boolean value indicating whether or not the alt (Alternate) key is enabled when the touch event is created. If the alt key is enabled, the attribute's value is true
. Otherwise, it is false
.
This property is Read only .
Syntax
var altEnabled = touchEvent.altKey;
Return value
altEnabled
-
true
if the alt key is enabled for this event; andfalse
if the alt is not enabled.
Example
This example illustrates how to access the TouchEvent
key modifier properties: TouchEvent.altKey
, TouchEvent.ctrlKey
, TouchEvent.metaKey
and TouchEvent.shiftKey
.
In following code snippet, the touchstart
event handler logs the state of the event's modifier keys.
someElement.addEventListener('touchstart', function(e) {
// Log the state of this event's modifier keys
console.log("altKey = " + e.altKey);
console.log("ctrlKey = " + e.ctrlKey);
console.log("metaKey = " + e.metaKey);
console.log("shiftKey = " + e.shiftKey);
}, false);
Specifications
Specification |
---|
Touch Events # dom-touchevent-altkey |
Browser compatibility
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