Trying to use await inside a .forEach() loop often fails to…
Error message
Trying to use await inside a .forEach() loop often fails to pause the loop as expected because .forEach() is not promise-aware.
What broke
The code attempts to use the await keyword within a .forEach() loop. However, .forEach() does not wait for promises to resolve, leading to unexpected behavior where asynchronous operations may not complete before the loop continues.
Why it broke
The root cause is that .forEach() is a synchronous method that does not recognize or handle asynchronous operations. When await is used inside it, the loop does not pause for the promises to resolve, causing the code to execute out of order.
How to fix
To fix this issue, you can replace .forEach() with a for...of loop or use Promise.all() with .map() to ensure that the asynchronous operations are handled correctly. This way, the code will wait for each promise to resolve before moving to the next iteration.
Code fix
for (const item of array) { await asyncFunction(item); }Explained by ErrorOracle
Prevention tip
This way, the code will wait for each promise to resolve before moving to the next iteration.
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