When are Arrow function, function declaration, function statement and function expression? Functions — JavaScript | MDN (mozilla.org) 2. What are anonymous functions? Why do we use them? Anonymous Function is a function that does not have any name associated with it. Normally we use the function keyword before the function…

JavaScript — Singlethread or multithread? JavaScript is always synchronous and single-threaded. If you’re executing a JavaScript block of code on a page, then no other JavaScript on that page will currently be executed. 2. How does JS handles multithread operations? Using Web Workers 3. How does JavaScript works? Tell about…

A monorepo tool called Lerna is used to handle several projects in a single repository. The monorepo strategy is an excellent way to preserve separate projects with clear ties between them while managing all the dependencies. …

Hi, I am penning this article with the intention of sharing my interview experience with FactSet. If you are about to appear or are preparing to appear for such role in the future, do give this a read! Hope it will help you. I will not reveal the exact question…

Nullish coalescing is a new logical operator (??) for the JavaScript programming language. It was released on April 2nd 2020, as part of ECMAScript version 2020 (ES11). Lets understand why do we need this and why it is so useful. OR (||) Operator In JavaScript, there is logical OR (||) operator, that always…

Recently, I was reading about async process and at that moment, I got confused between Concurrency, Parallelism and Multi-threading. When I started to find difference between these three, I didn’t get perfect answer at one place. At a point, I was confused with queries like: How is concurrency related to…

It is a very confusing question at which everyone gets stuck!! To find the answer, first, we should know the phases in the JS Engine. That will help us understand whether JS is a Compiler or Interpreter Language. There are 4 phases in JS Engine — Code Input, Parsing, Compilation…

console.log("Callback hell") func(val1) { func(val2) { func(val3) { func(val4) { consolo.log("This is called Callback hell") } } } } To understand Callback hell, you must know that JavaScript is single threaded synchronous language. But with help of callback queue and event loop , JS provides the functionality to do asynchronous…

*Steps with image I was working with computer vision project. The data set was large in size(Image data set) around 2Gb. So I decided to train the model on Azure Cloud. The Azure documentation is perfect resource to setup environment for machine learning, but at a specific point you won’t…