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.

Promises and async/await JavaScript and Node let you perform many tasks at the same time in a “non-blocking” way. This means you can tell the platform to do several things at once, without ...

Async with callbacks Async with Promises: Using async/await Using then/catch methods Reading the file Now let’s look at reading the koan.txt file. Here’s the synchronous approach: ...