Example
Execute a JavaScript when a button is clicked:
<button onclick="myFunction()">Click me</button>
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More "Try it Yourself" examples below.
Definition and Usage
The onclick attribute fires on a mouse click on the element.
Browser Support
| Event Attribute | |||||
|---|---|---|---|---|---|
| onclick | Yes | Yes | Yes | Yes | Yes |
Differences Between HTML 4.01 and HTML5
None.
Syntax
<element onclick="script">
Attribute Values
| Value | Description |
|---|---|
| script | The script to be run on onclick |
Technical Details
| Supported HTML tags: | All HTML elements, EXCEPT: <base>, <bdo>, <br>, <head>, <html>, <iframe>, <meta>, <param>, <script>, <style>, and <title> |
|---|
More Examples
Example
Click on a <p> element to change its text color to red:
<p id="demo" onclick="myFunction()">Click me to change my text color.</p>
<script>
function myFunction() {
document.getElementById("demo").style.color = "red";
}
</script>
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Example
Click on a button to copy some text from an input field to another input field:
<button onclick="myFunction()">Copy Text</button>
<script>
function myFunction() {
document.getElementById("field2").value =
document.getElementById("field1").value;
}
</script>
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Related Pages
HTML DOM reference: onclick event