Description
What’s new in ES2017
Async functions
Fulfilling a JavaScript Promises
async function asyncFunc() {
return 123;
}
asyncFunc().then((x) => console.log(x));
// 123Rejecting a JavaScript Promises
async function asyncFunc() {
throw new Error("Problem!");
}
asyncFunc().catch((err) => console.log(err));
// Error: Problem!Object functions
String methods
Pads the beginning of a JavaScript Strings