#The altkey attribute is used to display whether the ALT key is pressed when a keyboard event is triggered.
You can try running the following code to learn how to implement the altKey attribute in JavaScript.
<!DOCTYPE html>
<html>
<body>
<input type = "text" onkeydown = "funcAltKey(event)">
<div id = "res"> Press any key </div>
<script>
function funcAltKey(event) {
var val = document.getElementById("res");
if (event.altKey) {
val.innerHTML = "ALT key: Pressed";
} else {
val.innerHTML = "ALT key: NOT Pressed";
}
}
</script>
</body>
</html>The above is the detailed content of What is the role of the altKey attribute of keyboard events in JavaScript?. For more information, please follow other related articles on the PHP Chinese website!
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