How To Use Async/Await in forEach Loops: Node.js Best Practices for Asynchronous Operations
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Summary
The challenge of processing asynchronous operations in the correct sequence using forEach loops in Node.js is discussed in this tutorial.
The issue arises because forEach loops execute synchronously and do not wait for asynchronous operations to complete, which can result in race conditions and unhandled promises.
The correct approaches for handling sequential and concurrent operations are explained, along with best practices for improving performance and error handling.
The article recommends using for…of loops to ensure sequential execution and to use Promise.all() with map() for parallel operations.
Finally, to have more control over the indices, a standard for loop can be used.
The tutorial concludes by emphasising the importance of understanding these techniques in order to write efficient and bug-free Node.js code that can handle asynchronous array processing correctly.