JSFiddle - React, Tailwind, and code Playground

JavaScript

var event = new Event('build');
var elem = document.createElement('span');

// Listen for the event.
elem.addEventListener('build', function (e) { 
    console.log('I am running, baby! Running like wind!');
}, false);

// Dispatch the event.
elem.dispatchEvent(event);

console.log('Or am I?');