JSFiddle - React, Tailwind, and code Playground

JavaScript

$(function() {
  $('body').keypress(function(e) {
    alert(e.which);
  });
    
  simulateKeyPress("e", 'body');
});

 function simulateKeyPress(character, element) {
    var e = $.Event('keypress');
    e.which = character.charCodeAt(0);
    $(element).trigger(e);
}