JavaScript Sample

I have a function: static async assign( assigned_data, assigned_by ) { return new Promise( asyn… Read more Why I Can Not Push Value To Array Outside Of Function?

I asked a question about JS Promises in this post: I'm doing Promises wrong... What am I missin… Read more I'm Doing Promises Better, But Still Kind Of Wrong... One More Thing To Clear Up

This is similar to a question I posted today, but needs the request chained serially. I have two as… Read more Chaining 2 Asynchronous Calls (promise Api) To Run Serially

I have a code segment that looks like this: async function autoScroll(page, maxDate = null) { awa… Read more How To Await Inside Setinterval In Js?

I have an array of links, but executing them in parallel like this makes the server hang up and tim… Read more Running Promises In Array In Series

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?

I'm creating a feature that when you pass a bar code, the product of bar code is added to a tab… Read more Node Js - Promise Rejection Warning When Process A Lot Of Data

I would like to confirm if the call order of callbacks that are passed to then is guaranteed when t… Read more In Promises, Is The Callback Order Guaranteed?

Recently I started using pg-promise with bluebird library. I have always been nesting callback and … Read more How To Turn Nested Callback Into Promise?

Code Snippet: let data ={}; zlFetch('http://localhost:3000/new.json') .then(respon… Read more How To Export The Response Data Obtained From A Get Api Using Fetch From One Module To Another

If I have the following functions: doTask1: function ($scope) { var defer = $q.defer(); … Read more Can I Use $q.all In Angularjs With A Function That Does Not Return A .promise?

I am trying to return a String value to display it in my HTML. In my HTML, I'm using a Text ele… Read more Returning A Value In A Promise

I am reading Promise.all() guide but not seems what I need, I need to do something as console.log(P… Read more How To List All Promisses

Suppose I have a promise as following: p.then(Task1) .then(Task2) .then(Task3) .catch(errorHandl… Read more How Do I Know Which Handlers Throw Error In Promise?

I'm learning about promises and I absolutely want to make sure I am understanding their use bef… Read more Using Resolved Promise Data Synchronously

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?

I am trying to get an Ajax promise using the code below. Because my function makes another ajax cal… Read more Working With Ajax Promises / Deferred

Why a different result in the following cases? The first example works correctly, returns an array … Read more Different Behavior Of Async Functions When Assigning Temporary To Variable

I have the following code where I am calling an api const fetchToken = async () => { … Read more Fetch Api Always Returning A Promise

I tried bringing out result by storing in variable current product. But I cant use it outside the f… Read more I Want To Take Out The Result From Mysql's Connection.query And Save It In Global Scope Chain In Nodejs