JSFiddle - React, Tailwind, and code Playground

by designerPrasanna

HTML

<input type="email" id="myinput">

<button id="save">
save
</button> 



<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

JavaScript

$("#save").prop('disabled', true);
    $("#myinput").on('change keydown paste input propertychange click keyup blur', function(){
    $("#save").prop('disabled', $('#myinput').val().length>0? false:true);
})