readOnly

Sets or gets if a user can modify the value of the input element.

Setting the value of the readOnly property to true prevents users from changing the element's value. However, it does not limit your ability to change the value programmatically. Setting it to false allows users to change the element's value.

Getting the value of the readOnly property returns whether a user can modify the value of the input element.

You can also set an element's readOnly property in the Editor using the Settings pane: