How do I convert an existing callback API to promises?

I want to work with promises but I have a callback API in a format like: ###1. DOM load or other one time event: window.onload; // set to callback ... window.onload = function() { }; ###2....

NPM: After "npm link" module is not found

I'm developing two modules for NodeJS, first one named aligator and second one aligator-methods. Second one depends on first one to work. I'm developing these two modules at the same time and I...

How does Bluebird's util.toFastProperties function make an object's properties "fast"?

In Bluebird's util.js file, it has the following function: function toFastProperties(obj) { /*jshint -W027*/ function f() {} f.prototype = obj; ASSERT("%HasFastProperties", true,...

How do I tell if an object is a Promise?

Whether it's an ES6 Promise or a bluebird Promise, Q Promise, etc. How do I test to see if a given object is a Promise?

Set minimum delay on bluebird.js promise resolution

I want to guarantee a minimum delay on the resolution of a bluebird.js promise. As an example, let's say I'm making a request wrapped in a promise. The behaviour I want is that if the request...

Performance considerations with `Promise.all` and a large amount of asynchronous operations

When using Promise.all with asynchronous code (in case of synchronous code, there is nothing to worry about), you can suffer from severe performance (if not other kinds of) issues, when you want...

How to promisify Node's child_process.exec and child_process.execFile functions with Bluebird?

I'm using the Bluebird promise library under Node.js, it's great! But I have a question: If you take a look at the documentation of Node's child_process.exec and child_process.execFile you can see...

Is Node.js native Promise.all processing in parallel or sequentially?

I would like to clarify this point, as the documentation is not too clear about it; Q1: Is Promise.all(iterable) processing all promises sequentially or in parallel? Or, more specifically, is it...

Hangman game in Python: how to replace blanks with guessed letters

I am creating a simple Hangman implementation for a school project and I am currently stuck on the task of making a letter reveal itself in the word when guessed correctly. I already have code...

'concurently' is not recognized as an internal or external command, operable program or batch file

I try to run angular 2 project. There is package.json: { "name": "angular2-quickstart", "version": "1.0.0", "scripts": { "start": "concurrently \"npm run tsc:w\" \"npm run lite\" ", "tsc":...

How to properly deal with promisifyAll in typescript?

Consider the following code: import redis = require('redis'); //Has ambient declaration from DT import bluebird = require('bluebird'); //Has ambient declaration from...

Include unexpected. Element has to be either a Model, an Association or an object

I have a problem trying to configure postrgres with nodeJs, i followed this tutorial and i get a error that doesn't specify anything about what is wrong: here is the stacktrace Unhandled rejection...

How to use Bluebird.js with vue.js?

I'm trying to search for an example of how to use Bluebird.js with vue.js but haven't find anything. I'm trying this in my main.js: // The Vue build version to load with the `import` command //...

How to brew install specific version of Node?

For example I want to install either 7.9 or 7.10 but want to avoid Node 8 due to the webpack node-sass breaking bug. When I run brew search node this is what I see: ❯ brew search node leafnode...

Nodemon - "clean exit - waiting for changes before restart" during setup

I am trying to set up a RESTful API with Node and Postgres. I have run into a problem where whenever I attempt to run the server (using npm start) to test it locally, I get the following...

MODULE_NOT_FOUND error on npm install

I deleted the local folder which contained bluebird on my system using: rm -rf <module_path> And now when I try to install it again using: npm install bluebird or npm install bluebird --save I get...

Cannot read property 'map' of undefined Node js

I am getting the Error, I am writing a function to monitor a path for. I am new to Node.js: TypeError: Cannot read property 'map' of undefined at C:\Users\a\Desktop\DL\file\filemonitor.js:15:14 ...

Firebase Callable Function + CORS

I'm trying to call a callable Cloud Function from my app, but I'm facing CORS issues. I can't enable Cors since I don't have access to the request and response on the onCall function. This is my...

npm install hangs on loadIdealTree:loadAllDepsIntoIdealTree: sill install loadIdealTree

I have a Node.js application. When I try to run npm install it hangs with this: loadIdealTree:loadAllDepsIntoIdealTree: sill install loadIdealTree npm install --verbose gives me a little extra...

npm install reactjs app npm ERR! code E404

I am new to reactjs, and I am trying to create a reactjs app, and I follow the steps on react web, and it shows error. My node version is v8.11.1.npx version is 9.7.1. btw I can create the app...

[Vue warn]: Invalid prop: type check failed for prop "Items". Expected array, got Promise

I am new to the entire node technology stack and trying to improve myself by taking on a project. At this point I have had moderate success (possibly by chance), but I am currently stuck. My...

Delete multiple images from aws

Here is the code I am using for deleting the multiple images from aws AWS.config.update({ accessKeyId: process.env.ACCESS_KEY, secretAccessKey: process.env.SECRET_ACCESS_KEY }) const s3 = new...

How do I resolve npm audit returning ENOAUDIT: Your configured registry does not support audit requests?

This recently broke and I do not know what I might have done to break it beyond adding some additional dependencies. I am using https://registry.npmjs.org/ (the default). The relevant portion of...

Postgres connection gets ETIMEDOUT in deployed Firebase function (works locally)

I wrote a couple Firebase functions that make use of node-postgresql to make requests to an external PostgreSQL database hosted on Amazon (RDS), using this generic behavior: import { Client } from...

`npm audit` keeps returning "Your configured registry (https://registry.npmjs.org/) does not support audit requests.". How do I make it work again?

Here is the error I get: npm ERR! code ENOAUDIT npm ERR! audit Your configured registry (https://registry.npmjs.org/) does not support audit requests. with the log file: 0 info it worked if it...

"Cannot read property 'match' of undefined" during Npm install

I encountered error during building Jenkins Jenkins Log Task :api:processResources Task :api:classes Task :web:nodeSetup Task :web:npmSetup...

npm install issues TypeError: Cannot read property 'match' of undefined

I'm having massive issues installing the packages via npm. I'm getting nothing but this log as an output and have no idea where or how to fix this issue. 0 info it worked if it ends with ok 1...

npm ERR! Object for dependency "@babel/core" is empty

Any idea what to do? I don't have any, other than trying what it says there, "npm install" (which produces exactly the same error...) and googling, and there doesn't seem to be an answer here in...

Could not load reporter by name: cypress-testrail-reporter

I'm trying to publish my cypress test result into testrail with cypress-testrail-reporter I set up my cypress.json as follows { "baseUrl": "https://myAppUrl.xyz", "viewportWidth": 1920, ...

npm install failing with error "error Build failed with error code: 1"

i am running npm install command on my project but getting error Build failed with error code: 1 Part of the log posted below. 0 verbose cli [ 0 verbose cli 'C:\\Program...