HTML onkeydown Attribute: This attribute is defined as it fires when the user presses a key. And this attribute contains a single value script which works when any key pressed from the keyboard. While the order of events related to the onkeydown event:
- onkeydown
- onkeypress
- onkeyup
HTML onkeydown Attribute
This attribute can be applied to all the HTML elements.
Supported Tags: It is supported by all HTML elements except <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title>.
Syntax: <element onkeydown = “script”>
Browser Support:
This attribute is supported by the following browsers:
- Chrome
- Firefox
- Safari
- Opera
- Internet Explorer
Example: for <input> element
<!DOCTYPE html>
<html>
<body>
<p>A function is triggered when the user presses a key </p>
<input type="text" onkeydown="myFunction()">
<script>
function myFunction() {
alert("You pressed a key inside the input field");
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<body>
<p>A function is triggered when the user presses a key </p>
<input type="text" onkeydown="myFunction()">
<script>
function myFunction() {
alert("You pressed a key inside the input field");
}
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<body>
<p>A function is triggered when the user presses a key </p>
<input type="text" onkeydown="myFunction()">
<script>
function myFunction() {
alert("You pressed a key inside the input field");
}
</script>
</body>
</html>
Output:
A function is triggered when the user is pressing a key in the input field.