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Showing posts with the label Es6 Promise

Async Api Call Inside Foreach Loop

I ran into a problem that I cannot seem to solve, I'm guessing I'm missing some points in t… Read more Async Api Call Inside Foreach Loop

Es6 Promise Execution Order For Returned Values

Trying to understand the order of execution of ES6 promises, I noticed the order of execution of ch… Read more Es6 Promise Execution Order For Returned Values

How Javascript Promises Work Behind The Scenes

I'm so much confused about what happens behind the scenes when promise is produced and consume.… Read more How Javascript Promises Work Behind The Scenes

Abort Ecmascript7 Async Function

Is there a way to cancel a ES7 async function? In this example, on click, I want to abort async fun… Read more Abort Ecmascript7 Async Function

Returning Promise With An Async Function

Given the following two implementations (in ES6 / NodeJS) async TestFunc() { return new Promise… Read more Returning Promise With An Async Function

Using Settimeout With No Timeout Value While Evaluating Result Of Promise.all

The Promise.all MDN docs contain an example of evaluating multiple Promise.all results, but within … Read more Using Settimeout With No Timeout Value While Evaluating Result Of Promise.all

Promise.all Find Which Promise Rejected

In my code, I am using Promise.all() to run code asynchronously once some promises have all fulfill… Read more Promise.all Find Which Promise Rejected

Javascript Es6 Get Json From Url (no Jquery)

I was wondering if there's any ES6 way of getting json or other data from a url. jQuery GET and… Read more Javascript Es6 Get Json From Url (no Jquery)

Nodejs Process Crashed Without An Exception

I write a log entry to the log when an uncaught exception occurred in my nodejs app. process.on(… Read more Nodejs Process Crashed Without An Exception

How To Render Value In Promises On Button Click In React?

I have two modules App.jsx import React from 'react'; import ReactDOM from 'react-dom&#… Read more How To Render Value In Promises On Button Click In React?

How Do You Use Es6 Promises Today On Frontend?

I'm trying to use babel to compile file that contains es6 promises. I have installed babel-cli,… Read more How Do You Use Es6 Promises Today On Frontend?

How To Create A Function That Returns An Existing Promise Instead Of New Promise?

JavaScript/Promise experts, I hope you can help me, because I don't understand how I can create… Read more How To Create A Function That Returns An Existing Promise Instead Of New Promise?

How Can I Use Promises To Catch Errors When They Might Not Be Wrapped In A Promise?

Background I am using Promises, and I have a multitude of functions that may or may not return a Pr… Read more How Can I Use Promises To Catch Errors When They Might Not Be Wrapped In A Promise?

Complete All Functions Inside A For Loop Before Iterating To Next Iteration Of The Loop

Say i have a function like : var bigArray = [1,2,3,4,5.........n]; for(var i=0; i Solution 1: The … Read more Complete All Functions Inside A For Loop Before Iterating To Next Iteration Of The Loop

What Will Happen If I Set The Request's Mode To 'no-cors' In My Firebase Cloud Function?

This is a follow up to this question. I have a firebase function which is supposed to take an OTP, … Read more What Will Happen If I Set The Request's Mode To 'no-cors' In My Firebase Cloud Function?

Js Promises: If A Handler In A `then` Block Returns A Value Vs Returning A Resolved Promise, Does The `then` Block Handle It The Same Way?

Say I have a function that returns a resolved promise like this: let a = () => {return new Promi… Read more Js Promises: If A Handler In A `then` Block Returns A Value Vs Returning A Resolved Promise, Does The `then` Block Handle It The Same Way?

Fetch Api Cannot Load, Url Scheme 'file' Is Not Supported

i tried to use fetch on localhost, but it didn't work. here is my code: Solution 1: Since your… Read more Fetch Api Cannot Load, Url Scheme 'file' Is Not Supported

How To Correctly Resolve A Promise Within Promise Constructor

const setTimeoutProm = (delay) => new Promise(res => setTimeout(() => res(delay),delay)) … Read more How To Correctly Resolve A Promise Within Promise Constructor

Why Does Returning Snapshot.val() In A Promise When Using Promise.all Not Work?

I'm writing a Firebase Cloud Function and I'm trying to figure out how Promise.all works. I… Read more Why Does Returning Snapshot.val() In A Promise When Using Promise.all Not Work?

Get Data From A Promise

I'm working with Tabletop.js to get data from my Google Spreadsheet. In the function, I've … Read more Get Data From A Promise