The Boolean readonly attribute, when present, makes the element not mutable, meaning the user can not edit the control.

How do you make a text field Uneditable in HTML?

The readonly attribute makes a form control non-editable (or “read only”). A read-only field can't be modified, but, unlike disabled , you can tab into it, highlight it, and copy its contents. Setting the value to null does not remove the effects of the attribute. Instead use removeAttribute('readonly') .

What is the use of readonly attribute?

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).