01 - Exploring Async.js - async.parallel

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[uwemneku]

Years later and this is probably the best series on YouTube explaing async.js. Thanks

[mymusicana]

I cant believe it is that simple and when I went over one of the tutorials online I got so confused.

"If you can't explain it simply, you don't understand it well enough." Albert Einstein

[nirmesh]

awesome very nice and clear explanation.

[sohanagate]

Greatly thankful to you Youngzhi Huang. You seem much more human to me. Thanks I sometimes feel I am completely stupid if I dont get something wrong in my code.

[evatrium]

Nice demo. Thank you!.. almost sounds like the ocean in the background :)

[Ethorbit]

Very nice video, thank you for sharing this.

[leopoldroitel]

Nice video. Room for improvement, but very helpful.

[agcoder]

What screen recorder do you use to record your screen?

[nutandevjoshi]

How is this Parallel ??? If I used

var async = require('async');

var stack = {};
stack.sayHi = function (callback) {
for(var i=0; i<50; i++) {
console.log('in sayHi '+i);
}
callback(null, 'function 1st');
};

stack.sayHelo = function (callback) {
console.log('in sayHelo');
callback(null, 'function 2nd');
};

stack.sayBye = function (callback) {
console.log('in sayBye');
callback(null, 'function 3rd');
};

async.parallel(stack, function (err, result) {
if(err) {
console.log(err);
return;
}
console.log(result);
});


I thought
for(var i=0; i<50; i++) {
console.log('in sayHi '+i);
}

Will run for first 20 or 25 times and then sayHelo and sayBye and remaining 25 sayHi will complete.

[marcozambello]

Hi my name is Marco.
I use mysql and I have the parameters in different arrays, and my question is
what is the right async collection to use in this case?
(all the arrays have the same length)

for (let i = 0; i < cbo.length; i++) {
let upd = "insert into table (id, id_detail, score, note) values (?, ?, ?, ?)"
con.query(upd, [idcliente, detail[i], score[i], nore[i]], (err, rows) => {
callback(err, rows);
}

May you help me? Thanks

[davidconnelly]

Hi. Great video. Can I just ask...

What are the benefits of using the NPM Async module vs just using plain NodeJS? I mean, is it not fair to say that NodeJS is capable of doing asynchronous code (complete with promises and everything) WITHOUT having to call upon an external NPM Module?


Thanks

[alielb]

Nice tutorial, Thanks... by the way there's another error in Console.err(err);

[malibogic]

Hey Pantacode, I might need your help. Since I'm developing my own Discord bot, how do I make it sync if a variable (for example, the "game" he's playing) changes? Normally, it doesn't update. How do I force it to do so?

[ronnelocampo]

What?
What's the difference of this to series?