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Showing posts with the label Es6 Promise

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

Determine Which Promise Is Slowest In Promises.all

I have been using Promise.all in my app. For the purpose of improving app speed, how to determine … Read more Determine Which Promise Is Slowest In Promises.all

Array Of Queries For `for Await` Loop For Postgresql Transaction Helper

I made a transaction function that simplifies this action for me like this (it working): export asy… Read more Array Of Queries For `for Await` Loop For Postgresql Transaction Helper

How Can A Map An Asynchronous Function Over A List?

Obviously, given a list l and an function f that returns a promise, I could do this: Promise.all(l.… Read more How Can A Map An Asynchronous Function Over A List?

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

Does "resolve" Consistently Mean Something Distinct From "fulfill"?

(Related but not quite the same: JS Promises: Fulfill vs Resolve) I've been trying to wrap my h… Read more Does "resolve" Consistently Mean Something Distinct From "fulfill"?

How To Return A Promise From Async Function?

When I try to return a promise from an async function, it's impossible to distinguish the statu… Read more How To Return A Promise From Async Function?

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?