A simple test on Promise.all()

promises.js

// Promises without dates
(async function main() {
	const promise1 = new Promise((resolve, reject) => {
		setTimeout(() => {
			resolve('Promise 1')
		}, 5000)
	})

	const promise2 = new Promise((resolve, reject) => {
		setTimeout(() => {
			resolve('Promise two')
		}, 100)
	})

	const allPromises = await Promise.all([promise1, promise2])
	console.log(allPromises)
})()

// Promises with dates
(async function main() {
	const promise1 = new Promise((resolve, reject) => {
		setTimeout(() => {
			console.log('Promise 1', new Date())
			resolve('Promise 1')
		}, 5000)
	})

	const promise2 = new Promise((resolve, reject) => {
		setTimeout(() => {
			console.log('Promise 2', new Date())
			resolve('Promise two')
		}, 100)
	})

	const allPromises = await Promise.all([promise1, promise2])
	console.log(allPromises)
})()