Skip to content Skip to sidebar Skip to footer
Showing posts with the label Es6 Promise

I'm Getting A 'wrapped Promise Not Iterable Error' Even Though I Have Only One Parameter

I'm trying to use a Promise.all in my node.js microservice. The intent of the Promise.all is to… Read more I'm Getting A 'wrapped Promise Not Iterable Error' Even Though I Have Only One Parameter

Synchronous Or Sequential Fetch In Service Worker

I need to send a series of PUT & POST requests from a Service Worker. The order in which they&#… Read more Synchronous Or Sequential Fetch In Service Worker

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

Es6 Promise Settled Callback?

I want to run the same action whether my Promise resolved successfully or not. I don't want to … Read more Es6 Promise Settled Callback?

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

How Make Promise Execute Synchronously?

I use dom-to-image.js for converting dom to png image. As dom-to-image.js uses promise, the code ex… Read more How Make Promise Execute Synchronously?

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?

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?

How To Chain Nested Promises Containing Then And Catch Blocks?

How to chain ES6 nested Promises with each Promise in the nesting having then and catch blocks? F… Read more How To Chain Nested Promises Containing Then And Catch Blocks?

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

Js: Executing Events Overlapping In Time Afteranother

I receive events on-the-fly in the correct order in which I want to process them after another (as … Read more Js: Executing Events Overlapping In Time Afteranother

How To Use A Generator Function As A Callback Inside A Promise Returned By Fetch Call?

Is the above possible ? I'm not getting the consoled output when the callback function is a gen… Read more How To Use A Generator Function As A Callback Inside A Promise Returned By Fetch Call?

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

Why Does The Promise Object Block Rendering?

I was testing the Promise object and wrote some code that simulates a long running task that is syn… Read more Why Does The Promise Object Block Rendering?

Catching All Promise Rejections In An Async Function In Javascript

I've ran into an issue with catching all the errors when multiple promises throw rejection erro… Read more Catching All Promise Rejections In An Async Function In Javascript

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 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?

Promise.all([]) Returns A Resolved Promise, But Promise.race([]) Returns A Pending Promise. Why Are They Different?

If either Promise.all or Promise.race are called with a non-empty array, they return a pending prom… Read more Promise.all([]) Returns A Resolved Promise, But Promise.race([]) Returns A Pending Promise. Why Are They Different?

Best Es6 Way To Get Name Based Results With Promise.all

By default the Promise.All([]) function returns a number based index array that contains the result… Read more Best Es6 Way To Get Name Based Results With Promise.all

Javascript Promise Return Value

I am trying to make a crawler, and as the data is not showing in the page source, I can only execut… Read more Javascript Promise Return Value