i am not sure, what i should be using, please help
$(document).ready(function() {
$('#btn2').hide()
$("#btn1").click(function () {
$("#btn2").show()
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<button id="btn1">BTN 1</button>
<button id="btn2">BTN 2</button>
</div>