JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://jquery-joshbush.googlecode.com/files/jquery.maskedinput-1.2.2.min.js"></script>
<input type="text" id="ClientID" disabled="disabled" value="121222222222"/>
Unlock<input type="checkbox" onchange="CheckThis(this)" />

JavaScript

function CheckThis(obj){
    document.getElementById("ClientID").disabled = obj.checked ? "" :"disabled";
}

$(document).ready(function () {
        $("#ClientID").mask("999-999999999");
});