I have a couple repositories containing database calls such as getUser and getUsers. Now I export those repositories as followed: This leads to me having to do things like this: The intellisense says userRepository is: Is there a way how to assign the functions to userRepository without me having to do any th…
Tag: promise
How to print an array updated by setTimeout? [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 7 months ago. Improve this question The task is to write a function to reverse an array of numbers and p…
Unable to catch exception inside a Promise
I am trying to write a retry logic to connect to AWS Aurora db for mysql. Aurora db can sleep if it is left idle for a specified amount of time and performs a cold restart upon receiving a request. The restart can take 30-50sec and to establish a connection, I am doing three reattempts in the code below. To
How to retry an async function with a delay in javascript?
I am trying to fetch a record from a database. Due to race conditions it is possible and even likely that the record isn’t there when I first try to fetch it. How do I wrap this in a retry logic without going mad? I seem to be too stupid for it This code should retry n times with a
How should I use the callback to get the desired outcome?
Hello there I am getting the desired result when am using promise but how should I implement it with callback when am returning something from the function. result with promise *** using callback *** OUTPUT should be I am first I am second I am third Answer You don’t need that global temp variable, and …
Understanding Promise() for Controlling when Form Inputs are Displayed
I have certain form inputs that are only displayed depending on other input’s value. I am trying to control when inputs fadeOut() and fadeIn() with, I think, a promise() but it seems the call-stack still runs everything synchronously – maybe I am not configuring the promise correctly? Here is some…
why is the following code not returning sum of all the array elements?
Below is the code, I want to return the sum of all the array elements, why is it not working. I know we don’t need the Promise to achieve that but I would like to know how it can be done with a Promise. output:[object Promise]8 Answer I hope this will help Without changing sumPromise
Two JavaScript funtions “await” for something that will resolve, is there any way to avoid it?
I’ve to admin I need to read more about this topic. Anyways, here is the background: foo and bar need to use instance, which is a result of a async call load is checking if instance is undefined, to avoid re-loading it Example: Timeline: foo() will be called after 1 seconds (say t1) bar() will be called…
JavaScript Why does an inner setTimeout of a Promise runs after an outside setTimeout
When run the below code snippet, it outputs 2,1. Since Promise is a micro-task and everything inside a promise should run before a macro-task (setTimeout), I expect that the output will be 1,2. So even if there is a macro-task inside a micro-task, I thought the output will be 1,2. But it outputs 2,1. WhatR…
How do I wait to update an HTML header until promise is resolved?
I am building my first electron application and I am running into a JS error I am not sure how to fix. I have managed to setup the IPC for a basic password manager application. The use-case is simple: I click an HTML button and the frontend connects to the backend and delivers a keyword from which to build a