JSFiddle - React, Tailwind, and code Playground

HTML

<table><th><span class="change">Titel</span></th></table>

<table><th><input type="text" id="irgendwas"></th></table>

JavaScript

$('#irgendwas').hide();
$('.change').on('click', function(event) { 
	$('#irgendwas').show();
    $('.change').hide();
});
$(':input').on('focusout', function(event) {
	$('.change').show();
    $('#irgendwas').hide();
});