wiki/content/20201026104538-es2017.md

date	id	title
2020-10-26	d773822a-2ab2-4661-b5fa-8e16c5fe0dc4	ES2017

Description

What's new in ES2017

Async functions

Fulfilling a promise

async function asyncFunc() {
  return 123;
}

asyncFunc().then((x) => console.log(x));
// 123

Rejecting a promise

async function asyncFunc() {
  throw new Error("Problem!");
}

asyncFunc().catch((err) => console.log(err));
// Error: Problem!

Object functions

• Object.entries
• Object.values
• Object.getOwnPropertyDescriptors

String methods

Pads the beginning of a string

• padStart
• padEnd