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JS & DOM Reference

Overview

JavaScript Objects

JS Array JS Boolean JS Date JS Math JS Number JS String JS RegExp JS Global

Browser Objects

Window Navigator Screen History Location

Core DOM Objects

DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attr

HTML DOM Objects

DOM Document DOM Events DOM Elements
DOM Anchor DOM Area DOM Base DOM Body DOM Button DOM Form DOM Frame/IFrame DOM Frameset DOM Image DOM Input Button DOM Input Checkbox DOM Input File DOM Input Hidden DOM Input Password DOM Input Radio DOM Input Reset DOM Input Submit DOM Input Text DOM Link DOM Meta DOM Object DOM Option DOM Select DOM Style DOM Table DOM td / th DOM tr DOM Textarea

Text readOnly Property

Text Object

The readOnly property sets or returns whether a text field is read-only, or not.

A read-only field cannot be modified. However, a user can tab to it, highlight it, and copy the text from it.

Tip: To prevent the user from interacting with the field, use the disabled property instead.

Syntax

Set the readOnly property:

textObject.readOnly=true|false

Return the readOnly property:

textObject.readOnly

Browser Support

The readOnly property is supported in all major browsers.

Example

Set a text field to be read-only:

<html>
<head>
<script>
function setResult()
{
document.getElementById("email").readOnly=true;
}
</script>
</head>
<body>

<form>
Email: <input type="text" id="email">
</form>

<button type="button" onclick="setResult()">Set read-only</button>

</body>
</html>

Try it yourself »

Text Object