Functional Programming

Functional Programming

In this article, you will learn about higher order functions. An important cornerstone of functional programming is higher order functions. If you want to write programs in mostly functional style, it is inevitable that you master the basics of higher […]

Higher Order Functions in JavaScript

This entry was posted in JavaScript Basics and tagged ES6 Functional Programming Javascript on 6th August 2018 by zsolt-nagy

The ability to write asynchronous functions is a major update in ES2017. In order to understand this chapter, I suggest that you review the chapter on promises. What are asynchronous functions? Asynchronous functions are functions that return a promise. We […]

A Practical Introduction to ES2017 Async-Await

This entry was posted in ES6 and tagged ES6 Functional Programming Javascript on 25th June 2018 by zsolt-nagy

Exercise: Suppose the following tables are given in the form of arrays of objects: [crayon-5d11a537643b9698847969/] Translate the following SQL query using map, reduce, and filter: [crayon-5d11a537643c0062067474/] You are not allowed to use loops, if statements, logical operators, or the ternary […]

Translating SQL Queries using Map-Reduce-Filter in JavaScript

This entry was posted in ES6 JavaScript Interview Questions and tagged computer science ES6 Functional Programming Javascript Software Engineering on 11th June 2018 by zsolt-nagy

The article ES6 Strings and Template Literals introduced you to the syntax of ES6 strings and template literals. However, if you wanted to use ES6 template literals for microtemplating, the article itself does not help you. In this article, you […]

How Replacing JavaScript Templating Engines with ES6 Template Literals May Cost You ...

This entry was posted in ES6 and tagged Abstraction ES6 Functional Programming Javascript Maintainability regex Software Engineering UnderscoreJs on 13th February 2018 by zsolt-nagy

You might not know about me that I have conducted tech interviews with over 500 software developers from more than twenty countries with the objective of identifying and hiring the best talent. I have also been in the candidate position, […]

JavaScript Tech Interview Exercise 9: Event Delegation in a Pomodoro App

This entry was posted in JavaScript Interview Questions and tagged ES6 events Functional Programming html5 Javascript regex Tutorial on 6th February 2018 by zsolt-nagy

You might not know about me that I have conducted tech interviews with over 500 software developers from more than twenty countries with the objective of identifying and hiring the best talent. I have also been in the candidate position, […]

Binary Trees, Recursion, Tail Call Optimization in JavaScript

This entry was posted in JavaScript Interview Questions and tagged ES6 Functional Programming Javascript on 17th January 2018 by zsolt-nagy

This interview question is also available as a video on my Youtube channel. You might not know about me that I have conducted tech interviews with over 500 software developers from more than twenty countries with the objective of identifying […]

JavaScript Tech Interview Exercise 5: Connect-4 Solver in ES6

This entry was posted in JavaScript Interview Questions and tagged ES6 Functional Programming Javascript Tutorial on 7th January 2018 by zsolt-nagy

There are countless questions your interviewers may ask when it comes to how JavaScript works. The idea behind asking these questions is to assess whether you have recent experience in writing JavaScript code. Some more clueless interviewers tend to ask […]

Ten JavaScript Theory Questions – The ES6 Quiz

This entry was posted in JavaScript Interview Questions and tagged ES6 Functional Programming Javascript JSON regex Tutorial on 30th December 2017 by zsolt-nagy

In the article Building a Chat Component in React and ES6, we learned a way to create React components: [crayon-5d11a537753f5069593568/] This simple component is written by extending React.Component. We will now introduce another way to define simple components. You will […]

Container Components and Stateless Functional Components in React

This entry was posted in React + Redux and tagged ES6 Functional Programming Javascript React Tutorial on 17th March 2017 by zsolt-nagy

controlled components in React — In this short article, you will get a chance to learn what controlled components are and why they are beneficial. Suppose a component has an input field with a value depending on the state of the component. The default value […]

Creating Controlled Components in React

This entry was posted in React + Redux and tagged ES6 Functional Programming Javascript React Tutorial on 28th February 2017 by zsolt-nagy

Arrow Functions — In this article, I will introduce my new Youtube channel with two videos. Both videos are from ES6 in Practice. By watching these short videos, you can learn about Arrow Functions, and you can also put theory into practice by […]

Video Tutorial – ES6 Arrow Functions with 3 Exercises

This entry was posted in ES6 and tagged ES6 Functional Programming Javascript Tutorial on 31st January 2017 by zsolt-nagy

This is the third part of the React-Redux series. In the first part, we introduced React and Redux. Although there was no code in the article, clarifying the concepts is still important. In the second part, we set up the […]

Building a chat component in React and ES6

This entry was posted in React + Redux and tagged Abstraction ES6 Functional Programming Javascript React Tutorial on 13th December 2016 by zsolt-nagy