Node.js Tutorial - 46 - I/O Polling

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I/O Polling

[alisahibp]

Never seen anyone explaing such advance and deep concepts in such a simple way.
Seems like Vishwas has taken Einstien quote seriously where he says "if you can't explain it simply you don't understand it well enough"? 😅
All i can say is Thankyou Sir for your precious time and efforts. God Bless you!.

[olakunlemakanjuola]

I get to understand how things work under the hood in Nodejs, this is awesome! Thanks Vishwas.

[KeshariPiyush]

This Playlist is out of this world Thanks Vishwas

[abrarzahid]

Great video and those experiment examples were highly effective in solidifying the concepts. Thanks Vishwas, May God bless you. Sending respect from Pakistan

[rahulj]

this is very deep explanation. It was very clear and understandable

[owethuweek]

Thanks a lot for sharing your knowledge!

[MultiDonet]

Better than paid courses ! Stay blessed Vishwas !

[prnk]

very good work much better than udemy paid courses .. keep up ur good work.. !

[pinakidash]

I have a confusion - initially readFile() need to be queues up, but in last experiment why (readFile()) i/o queue is empty and it was queues up after the execution of timeout() and after setimmediate() poll, readfile() execute ?

[drivenbycuriosity]

Why callback functions are added to the queue only after the completion of I/O Operation? That's bit odd and counter intuitive. I guessed it would add the callback to the queue first and execute it after completion of the actual I/O operation.

[modestas]

so during the poll phase it first "collects" the completed callbacks and only executes them in the next cycle? Does this mean that it's always executing callbacks from the previous cycle and never collects and executes them in the same cycle? For example if the poll phase is sleeping and waiting for new I/O callbacks, does it add them to the queue and execute them immediately in that case? I can't find an answer to this question anywhere

[eillioniscreating]

I have a little confusion in this tutorial .tutorial 46.what does it mean control? Do you mean event loop ? Can anyone explain me about that

[thonguyenviet]

please make series about NodeJS + Prisma.

[beshoyfayez]

can you talk about angular2+ unit testing?

[napoleonborntoparty]

strange it all different from documentation

[AntonioOliveiraFM]

in node 22 as es module:
$ node ioqueue.mjs
this is Promise.resolve 1
this is process.nextTick 1
This is setImmediate 1
This is setTimeout 1
this is readfile 1

[gaudanikaushik]

This is Process.nextTick 1
This is Promise.resolve 1
This is setTimeOut 1
This is setImmediate 1
This is ReadFile 1