JSFiddle - React, Tailwind, and code Playground

by Arandolph0

HTML

<form name="frm" > 
   <div id="chkObj"> 
        <input id="chkBtn" type="checkbox"  name="chkBtn" 
          ></input>        
    </div>
    <div id="Rush"> 
        <input id="rushBtn" type="button" name="Rushbtn" value="Rush"  ></input>        
    </div>
</form>

JavaScript

var element = getElementById("rushBtn").disabled;
var checkBx = getElementById("chkBtn").checked;
var isChecked = true;
alert("Checkbox: " + checkbox + " Disabled: ");
if((checkbox && element) || (checkbox == false && element == false && isChecked))
{
    alert("enabling");
    element.disabled = false;    
} else if(checkbox == false && element == false && !isChecked)
{
    element.disabled = true;
}