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What is the role of the altKey attribute of keyboard events in JavaScript?
- 王林forward
- 2023-08-31 09:53:071232browse
#The altkey attribute is used to display whether the ALT key is pressed when a keyboard event is triggered.
Example
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>
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