Run async process in Node.js

Question

I understand that node.js has a lot of functions that runs async, like the I/O functions. I am trying to run two modules that I created in a async way, these modules only use the CPU, not an I/O request.

For example, I have something like this: I call f2() first, but I want it so if f1() ends first it won't wait until f2() has finished; is that possible? This is only an example, but I will use this calling another js file.

I tried to write this using the process.nextTick(), but I don't know if that's the real solution.

function f1(){

    for (i=0;i< 100;i++){

    }
    console.log("f1")
}

function f2(){

    for (i=0;i< 100000000000;i++){

    }
    console.log("f2")
}


f2();
f1();

Community · Accepted Answer · 2017-05-23 12:23:50Z

1

There is an async module for doing just this

look at the parallel example in the following post node.js async libs

async.parallel([
    function(){ ... },
    function(){ ... }
], callback);

the wiki for async.js https://github.com/caolan/async

edited May 23, 2017 at 12:23

CommunityBot

11 silver badge

answered Aug 16, 2013 at 22:39

KeepCalmAndCarryOn

9,0962 gold badges34 silver badges51 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

shau Over a year ago

this wait until the first func ends why? async.parallel([ function (callback) { var i = 0; for (i;i< 100000000;i++){ } callback(null, i); }, function (callback) { var i = 0; for (i;i< 100;i++){ } callback(null, i); } ], function (err, data) { if (err) throw err; console.log(data); });

Collectives™ on Stack Overflow

Run async process in Node.js

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related