HTML Input Readonly Attribute - W3Schools
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❮ HTML <input> tag
Example
An HTML form with a read-only input field:
<form action="/action_page.php"> <label for="country">Country:</label> <input type="text" id="country" name="country" value="Norway" readonly><br><br> <input type="submit" value="Submit"> </form> Try it Yourself »Definition and Usage
The readonly attribute is a boolean attribute.
When present, it specifies that an input field is read-only.
A read-only input field cannot be modified (however, a user can tab to it, highlight it, and copy the text from it).
The readonly attribute can be set to keep a user from changing the value until some other conditions have been met (like selecting a checkbox, etc.). Then, a JavaScript can remove the readonly value, and make the input field editable.
Note: A form will still submit an input field that is readonly, but will not submit an input field that is disabled!
Browser Support
The numbers in the table specify the first browser version that fully supports the attribute.
| Attribute | |||||
|---|---|---|---|---|---|
| readonly | Yes | Yes | Yes | Yes | Yes |
Syntax
<input readonly> ❮ HTML <input> tag ★ +1 Sign in to track progressTừ khóa » Html Form Block Input
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