async.js Questions
3
Solved
I wrote a script that creates a new excel file with ExcelJS. Adds 3 headers and inserts 2 rows. Then saves that file to disk.
In the next step it should read that previously saved file, add 1 row...
Graziano asked 13/3, 2019 at 0:48
10
Solved
Using mongoskin, I can do a query like this, which will return a cursor:
myCollection.find({}, function(err, resultCursor) {
resultCursor.each(function(err, result) {
}
}
However, I'd like to...
2
Solved
I have a Promise.allSettled which i use to resolve data in the database. I have an array of Promises which I run through the Promise.allSettled, then I only use the resolved ones. Is it possible to...
Bedder asked 3/12, 2020 at 10:9
1
I have this async function in a file called index.main.js which has a variable , 'targetFiles' which I would like to export to another file which is index.js. Problem is I can't find a way to expor...
Dugaid asked 5/7, 2019 at 1:46
1
I wrote an async function that needs to call a program in the server and that program generate a file which needs to load in UI for displaying. I am not sure how to show the result in my UI since e...
2
Solved
I am making call to the bitbucket API to get all the files that are in a repo. I have reached to a point where I can get the list of all the folders in the repo and make the first API call to all t...
Ignace asked 16/10, 2018 at 19:6
1
I need to do some movements on page while page exists (or is opened). But other async code can close it in any time.
I try to use code, like this:
async.whilst(
function(){ /*TEST function: retur...
1
Solved
I have this right now:
export type EVCb = (err:any, val?:any) => void;
export type Task = (cb: EVCb) => void;
export const q = async.queue((task: Task, cb) => task(cb), 2);
Isn't there ...
Trivandrum asked 25/6, 2018 at 21:51
2
Solved
Recently asked such a question.
What is faster in Mongo: a populate or individual assync requests?
Example
var mongoose = require('mongoose')
, Schema = mongoose.Schema;
var FeedPostCommentSc...
Ctesiphon asked 14/5, 2018 at 14:7
1
Solved
I have the following TypeScript code:
const allDescribeBlocks: Array<ITestSuite> = suman.allDescribeBlocks;
async.eachSeries(allDescribeBlocks, function (block: ITestSuite, cb: Function) {
...
Sublunary asked 11/6, 2017 at 1:45
3
Solved
Signature for async.map is map(arr, iterator, callback) (https://github.com/caolan/async#map)
I have a var context //object
and I need to pass this to the iterator. How do i do this ?
Trichinosis asked 2/1, 2014 at 12:22
2
Solved
Which is the fastest method gets the query to MYSQL, and then comes back to output:
console.log('queries finished', results)"
Is there an even better method? Please explain your answer!
Thank...
Blench asked 6/1, 2017 at 19:41
3
In the following snippet I would like to validate the fields in the first async method.
If they are not valid I would like to return an error to the user immediately.
How do I do that?
var for...
Bethina asked 29/9, 2017 at 14:46
1
Solved
I'm working on an AWS Lambda function that currently makes hundreds of API calls but when going into production it will make hundreds of thousands. The problem is that I can't test at that scale.
...
Kidron asked 4/8, 2017 at 18:25
5
Solved
As I have understood so far: Javascript is single threaded. If you defer the execution of some procedure, you just schedule it (queue it) to be run next time the thread is free. But Async.js define...
Gustie asked 26/9, 2013 at 9:11
4
Solved
I need to do the code like following:
function taskFirst(k, v) {
console.log(k, v);
}
function taskSecond(k, v) {
console.log(k, v);
}
function run() {
var g1 = "Something";
var g2 = "Someth...
Prithee asked 22/1, 2014 at 16:7
6
Solved
I'm sure this is a fairly simple task, but I'm not able to wrap my head around it at this time. I've got a nested set of forEach loops, and I need to have a callback for when all the loops are done...
Rehnberg asked 27/3, 2017 at 16:43
1
Solved
I am having a slight issue when using async.queue with a filestream
I have a scenario where my filestream will finish
I set fileRead to true
however the queue will be empty and already have call...
Aperiodic asked 9/2, 2017 at 19:46
1
Solved
Can someone explain me the different between this two:
async.each(items, function (item, callback) {
// Do something
});
OR :
items.forEach(function(item) {
// Do something
)};
Witha asked 31/1, 2017 at 9:59
1
I'm trying to parse and insert a big csv file into MongoDB but when the file extends 100'000 rows I get a bad response from the server. And the files I need to insert are usually above 200'000 rows...
2
I am trying to run an asynchronous loop async.each over an array of objects.
On each object in the array, I am trying to run two functions sequentially (using promises). The problem is that async....
Vatican asked 10/1, 2017 at 11:8
1
Solved
I have been working with async.waterfall and nodejs. Its working very well but now I have a question about flow.
I want to use a simple if condition in async.waterfall flow.
async.waterfall([
...
Jacobian asked 28/12, 2016 at 14:21
1
I need to perform a cyclic call to some external API with some delay, to prevent from 'User Rate Limit Exceeded' restriction.
Google Maps Geocoding API is sensitive to 'req/sec', allowing 10 req/s...
Tessi asked 19/4, 2016 at 22:40
3
I started working on a node project recently and have been using the async library a lot. I'm kind of confused as to which option will be faster. Using async.map on some data and getting its result...
Byrnie asked 14/5, 2015 at 0:40
1
Solved
I keep getting an ETIMEDOUT or ECONNRESET error followed by a Callback was already called error when I run index.js.
At first I thought it was because I was not including return prior to calling t...
Deform asked 23/10, 2015 at 19:30
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