just a function to imitate a slow promise

doAPromise.js

let color = 'color: LimeGreen;';
let ms = performance.now();

async function doAPromise(success, timeout) {
	return new Promise((resolve, reject) => {
		setTimeout(() => {
			if (success) {
				resolve();
				console.log('%cPromise resolved', color, ms);
			} else {
				reject({ message: 'Promise rejected' });
			}
		}, timeout);
	}).then(function (result) {
		return 'your data';
	});
}

async function asyncLoadData(bool, timeout) {
	try {
		return await doAPromise(bool, timeout);
	} catch (e) {
		return 'no data';
	}
}