JSFiddle - React, Tailwind, and code Playground

HTML

<button>fire event</button>
<input id="test" />
<div id="info"></div>

JavaScript

$("#test").on('keypress', function(event){
    $('#info').append('<br />intro event: ' + event.keyCode);
});

$('button').on('click', function(event) {
    var e = $.Event('keypress', { keyCode: 102 } );
    $("#test").trigger( e );
});