Promisify functions and avoid callback hell | async javascript

In this video we look into the process to promisify functions so that we do not need to work with callbacks, instead we work with javascript promises. We create a promisify function as a wrapper and then pass the original function to it and get a promisified function in return. This promisified function returns us a promise with which we can do the usual stull like .then() or async await.

Timestamps:
00:00:26 - Callbacks
00:01:42 - Promisifying
00:03:27 - Testing
00:04:16 - Async await

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License: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
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#javascript #function #promisified

[codycodes]

Awesome info! Looking forward to your next topics; keep up the good work!

[joseperazah.]

Super helpful and well explained, thank you for making this video! Keep up the good work, friend

[saeeduchiha]

Same low quality programming as always! Did you have to return two nested functions???

[artiomoganesyan]

this is nice!
However, why do you need to return a function on line 10?
if you don't than you get a promise as a result and not a function that returns a promise.

[kmylodarkstar]

await' is only allowed within async functions, need to be wrapped into