Max Claus Nunes

Apr 19, 2022

The tale of an undefined error in Javascript

Have you ever seen in Javascript an error catch of a Promise receiving an undefined error argument? Until one week before writing this article I had never seen it, and nothing came to my mind why and how it could be undefined. myFunction().catch((error) => { console.error(`${error}, …

JavaScript

2 min read

JavaScript

2 min read

Feb 2, 2022

My changes caused a memory leak to a Golang service. Here is how I investigated and fixed it.

Recently I was pointed out by colleagues that a Golang service we own started to have memory spikes which seemed like memory leaks. They noticed it all started around when some of my changes had been released to production. Alright, so at this point, we know it is definitely something…

Golang

4 min read

Golang

4 min read

Sep 30, 2020

Be careful how you check whether a string content is a number or not in Javascript

Javascript is an incredible programming language and I love its simplicity and how I can program in the Frontend and Backend having the same language context. …

JavaScript

2 min read

JavaScript

2 min read

Published in

Better Programming

·Apr 17, 2020

Unicode Equivalence

Not all emoji are created equal — Unicode Everyone in the world should be able to use their own language on phones and computers. — Unicode Consortium home page The Unicode standard defines a different code for every character. …

JavaScript

3 min read

JavaScript

3 min read

Mar 4, 2018

Sqlectron: A goodbye to my first big experience with Open Source

In 2015, I and my colleagues were struggling with different SQL clients. We were working with microservices, which allowed us easily using different databases for different issues. But, most of the existing SQL clients would support only a single database type. …

Sql

2 min read

Sql

2 min read