HTML onchange Event Attribute
Example
Check the input field when the value changes:
<input type="text" name="txt" value="Hello" onchange="checkField(this.value)">
Browser Support
| IE | Firefox | Chrome | Safari | Opera |
|---|---|---|---|---|
All major browsers support the onchange attribute.
Definition and Usage
onchange is triggered when the element value changes.
The onchange attribute applies to: <input>, <textarea>, and <select> elements.
Differences between HTML 4.01 and HTML5
None.
Syntax
<element onchange="script">
Attribute Value
| Value | Description |
|---|---|
| script | Script runs when onchange occurs. |
