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
String methods
Pads the beginning of a string