Don't Make This Mistake in JavaScript - Async Operations

When you should use forEach vs for of in async operations.

#softwareengineering #javascript #shorts

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Creative Commons / Attribution 3.0 Unported License (CC BY 3.0)

[AlgoJS]

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[al-ftng]

Amazing. I have alot of use cases for this and i remember struggling to perform something similar. Much appreciated. Please keep these videos coming

[bob_kazamakis]

Or just use map and an await Promise.all() so you do all of them concurrently instead of sequentially if there isn’t any order requirement to your call.

[markemerson]

liking your videos - keep em coming...

[suspendedresolution]

I feel like for each is rarely a better solution than a regular for loop.

[davidgillies]

I prefer to push the prmises onto an array and use Promise.all or Promise.allSettled outside the loop.

[MrYevelnad]

Why would you put async when in the end you will not leverage async mode?

[닐리아담]

async processes are intended to be processed concurrently. i cant think of a single situation where that code is desirable.

[kris_lawson]

Even better to use an await promise.all to start the API requests asap.

[whmZ]

Oh that's why my forEach didn't work, that's why I resorted to bluebird 😅

[tiagocunhafernandes]

Show example with parallels async call but with limited requests at the same time to prevent rate limit or 429 error..
Normally I combine while loop with promise.all and splice and map.. but is not better solution because make groups os request at same time and wait all requests of each group to start next group…

[Matkotech]

Gr8 content, What theme and font is this?

[nknapsterr]

Faced this error. Took an 5 hr to understand whats happening.... It was

[danielgruner]

Better do not use it exhaustingly as it blocks the event loop…

[Stoney_Eagle]

I stopped using for each all together because of this behavior. For of all the way 😊

[umm_iter]

The explanation was not right about why it works

[ShadowVipers]

I mean why though? Like why send a request for each item... I feel like if you have to do that you're doing something wrong from the beginning.

[ManvendraSK]

There is a difference being functional vs being async.

[waynes]

Make async run like it's sync, and it's fixed!?

Don't worry i won't make the mistake of doing js