JSFiddle - React, Tailwind, and code Playground

HTML

Try backspace and right after that; try typing again.<br />
<br />

<input type="text" id="postalcode" name="postalcode" placeholder="1234AB" value="Try BACKSPACE" />

JavaScript

$(document).ready(function() {
	$('#postalcode')
  	.trigger('focus')
    .trigger('blur');
});