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Arek Jaworski

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Better Programming

The Fastest and Most Efficient Way to Calculate Fibonacci Series in JavaScript

Neither recursion nor iteration, Binet’s formula takes the cake

Sep 15, 2021

The Fastest and Most Efficient Way to Calculate Fibonacci Series in JavaScript

Sep 15, 2021

Published in
Level Up Coding

PLLuM — Polish Large Language Model

Do we need another model?

Mar 6

AI in Polish

Mar 6

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Published in
JavaScript in Plain English

How To Count Specific Array Elements Using JavaScript

How to do this fast and efficient? Which way is the best one?

Jul 5, 2023

How To Count Specific Array Elements Using JavaScript

Jul 5, 2023

Published in
Level Up Coding

Cyber Security — How not to do it?

Halifax Bank please don’t do this again. First advice is for free!

May 30, 2023

Cyber Security

May 30, 2023

Published in
JavaScript in Plain English

JavaScript Tricks and Mysteries Explained

JavaScript is a language full of surprises. In this article, we will explore some of JavaScript mysteries and explain them using simple…

Mar 29, 2023

Trying to solve tricky JavaScript problems

Mar 29, 2023

Broń Palna w Polsce

W zależności od źródła i czasu publikacji, w Polsce na 100 mieszkańców przypada średnio od 1,3 do 2,5 sztuk broni. Jak wypadamy na tle…

Mar 23, 2023

Broń Palna w Polsce

Mar 23, 2023

Published in
Geek Culture

RyanAir’s Bad Customer Experience

RyanAir you failed

Oct 10, 2022

RyanAir’s Bad Customer Experience

Oct 10, 2022

Published in
Geek Culture

Artificial Intelligence Is Getting Stronger, Faster And Smarter

Should we all be worried about our jobs as AI is taking over the World?

Jun 30, 2022

Iconic shot of HAL 9000 from from 2001: A Space Odyssey movie

Jun 30, 2022

Published in
JavaScript in Plain English

Most Popular JavaScript Arrow Functions Explained

Array map(), reduce(), filter(), forEach(), some() and every() function explained.

May 27, 2022

Arrow Functions

May 27, 2022

Published in
Better Programming

How to Use Custom Authorizer in AWS API Gateway With Serverless

Custom authorizer and serverless

Feb 23, 2022

How to Use Custom Authorizer in AWS API Gateway With Serverless

Feb 23, 2022

Published in
Level Up Coding

Secure Coding Standards

Take your software development skills to the next level by learning secure coding standards.

Dec 6, 2021

Secure Coding Standards

Dec 6, 2021

Published in
Level Up Coding

Difference between ==, ===, equal and eql in chai

These look very similar but there is a subtle difference. Follow this tutorial to understand it.

Nov 17, 2021

Difference between ==, ===, equal and eql in chai

Nov 17, 2021

Published in
Geek Culture

NFT Explained

NFT explained without any buzzwords, jargon and technical gibberish. Just facts in plain English.

Nov 4, 2021

EVERYDAYS: THE FIRST 5000 DAYS

Nov 4, 2021

Published in
JavaScript in Plain English

Big O Notation Explained

Big O notation explained without any complex maths using simple examples

Oct 20, 2021

Big O Time Complexity

Oct 20, 2021

Published in
Geek Culture

Fail Fast

Fail fast is the essential skill (not only in software development) that allows you to turn failure into success.

Aug 30, 2021

Fail Fast

Aug 30, 2021

Published in
Geek Culture

JavaScript Destructuring

In this tutorial you’ll learn how to destructuring assignment works in JavaScript. After you read this article, you’ll know how to easily…

Jul 28, 2021

JavaScript Destructuring

Jul 28, 2021

Published in
Better Programming

Understanding JavaScript Closures

Learn the fundamental concepts of JavaScript through a few examples

Apr 7, 2021

Hot-air balloon drifting in the sky.

Apr 7, 2021

Is 2 = 1?

Are you tired of solving all these simple maths “problems” that are flooding the Internet? Here is a bit more challenging problem.

Apr 2, 2021

2 = 1

Apr 2, 2021

Published in
Geek Culture

Node.JS and Factory Pattern

If you want to be an exceptional programmer you must be familiar with design patterns. One very common is Factory Method Pattern. In this…

Mar 23, 2021

Factory Method Pattern and Node.JS

Mar 23, 2021

Published in
Better Programming

R.I.P., Flash. You Will Not Be Forgotten

Celebrating a fundamental web technology that kicked off many careers and was retired at the end of 2020

Jan 4, 2021

R.I.P., Flash. You Will Not Be Forgotten

Jan 4, 2021

Arek Jaworski

Arek Jaworski

PhD Student at Queen's University Belfast. Former Software Architect — AWS/Node.JS/JavaScript Contractor and Tutor. Combing industry experience with research!

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