A practical guide to writing cleaner asynchronous JavaScript using async/await combined with Promises. Covers promisifying callback-based functions, how async functions automatically return Promises, error handling with try/catch, and how ES6 block-scoped variables (const/let) eliminate the need for IIFEs and closures when looping over async operations. Includes runnable code examples progressing from ES5 callback patterns to clean async/await loops.
Table of contents
Writing Async Code (with Promises)Async functions automatically return a PromiseLooping with Async (Bye bye IIFEs and ES5 Closures)4 Impressions