javascript_practice/hw14/domEventPromise.js

const domEventPromise = (element, eventName) => {
	return new Promise((resolve, reject) => {
		const handler = event => {
            resolve(event);
			element.removeEventListener(eventName, handler);
		}
		element.addEventListener(eventName, handler);
	});
}

domEventPromise(button, 'click').then( e => console.log('event click happens', e))