By using Promises or async/await, the code for timed tasks can be made more concise and easier to maintain. Summary Asynchronous programming is an important concept in modern JavaScript development.

Asynchronous programming in JavaScript leverages features like callbacks, promises and async/await to sidestep this issue by allowing other code to run in the meantime.

Using callback-passing for asynchronous actions does not compose very well and might create complex flows of passing callbacks around to handle return values. The JavaScript community is aware of ...