AsynchronousLesson 12Free preview

Node Async/Await

This lesson is part of Node.js · All levels

Summary

Async/await is the syntax above Promise that makes asynchronous code look like synchronous code without sacrificing the non-blocking nature. Function async always returns the Promise, while await waits for the Promise result before moving on to the next line. The error can be handled with try/catch so the handling is much cleaner.

Key points

Always return the Promise even if there is no explicit
Await is valid only within function async (or top-level ESM modules)
The code after await is run as a continuation, not a blocking thread
Use try/catch to capture the error of the operation

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