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jonasraoni/README.md

About Me

Software engineer with 15+ years (I got my first job in ~2001) of experience working with different technologies and devices (jack of all trades, master of some 😁). You might check out my LinkedIn or CV for more professional information.

Persistent hardhead (I'll try again and again, until I succeed), dad of two boys (🔥 + 🧊), challenge lover, bug hunter, soccer player wannabe, lego builder, fan of Italian food and desserts 🥰

How I Code/Solve Problems

My key languages are JavaScript, C# and PHP, though in the past I've used C/C++, Pascal and a bit of Java. I'm a practical person, who doesn't like much slow, long and repetitive things, so I naturally try to be concise and short in my codes, I also try to write things as performatic as possible. Since I like small challenges, I've also started solving the tasks below in my micro spare time:

Chutes/snakes and ladders HackerRank solutions in JavaScript Codility solutions in C# LeetCode solutions in JavaScript

General Beliefs About Programming

  • Personal rule of thumb: Every now and then we're surrounded by new ideas and technologies, which means that everything we're building is already a kind of legacy, which will be dumped (errr transformed) a couple of years ahead. So, I think we should strive to minimize the amount of code, complex architectures and customizations to the minimum, as it will make it easier to deal with the forthcoming deprecations.

  • Code fragmentation: The less code the better! I think the same applies to the amount of files, classes, tools, services, etc. A lot of people argument that simple and small functions/classes, fragmented across several files, makes things easier to test/reuse/understand and difficult to break. I can't disagree, but I have to say that reading/debugging/following such code highly increases my cognitive load, I feel like reading a book where each paragraph sends me to a random page, without context, and switching between these pages is painful (unless I'm the creator haha). So, I generally prefer to avoid fragmenting the code until an abstraction is needed (e.g. duplicated code). Basically, I think that a god method is horrible, but the inverse is not less cruel...

  • Micro-optimizations: Ohh, I like them haha! But it's not fruitful to spend much time nitpicking (micro-optimization) and sharpening your knife (overengineering) for a war that may never come, better to spend some time on macro-optimizations ¯_(ツ)_/¯

  • Code complexity: Everything in life needs equilibrium, especially when a piece of code becomes so complex, that even its creator can't fully understand without reading the code throughly. As there's no rules about it, I think it's good to align the complexity with your team/own limitations.

  • Dependencies: I'm generally against depending on closed source products and specific vendors, everything should be replaceable. But I fully support depending on open-source projects, as you get support, documentation, testers, upgrades and trained professionals for free. I think micro-dependencies, seen in the JavaScript world, are not worth the maintenance trouble.

  • Slow vs fast languages: I enjoy watching the "fastest language chart", and such things, but in the end it's a bit overrated. For general applications, what really matter is to have an effective data transfer/structure, given the key to performance is to avoid using resources.

  • Coding patterns: I see coding as a kind of art, so I'm not a big fan of materials spitting coding rules. Some people end up using those as a kind of "horse eye patch", which limits their alternatives, while the truth is that a problem might have N different (and equally great) solutions. But things are easier when everybody speaks the same language :)

  • Reinventing the wheel: Traditional jobs, require standard approaches. Despite that I think it's the best way to evolve something, it gives us freedom to filter out bad decisions and merge in the good ones, that's how new tools/approaches appear.

  • Hiring in IT: We're often looking for our clone, someone that thinks and knows the same things as us, and in this process a lot of great professionals are lost. I know big companies can afford to add more people into the process, and that seems to be fairer. For smaller companies I'd follow these priorities: indication from someone I trust > "offline" coding/implementation test (not huge, but complex enough to allow the person to show his organization, reasoning and resource management skills) > previous experiences/personal projects > soft-skills.

First Open Source Projects

A source of manually minified JavaScript snippets written with a friend a long time ago, when I had plenty of spare time. It's kind of abandoned, but I'm still using some codes from there 🥰).

JSFromHell

Code editor written in Object Pascal that used Scintilla under the hood, it was also my first open-source project. I've contributed with a lot of code and ideas, such as the transition from procedural code to an object oriented approach. The plugins were written in JavaScript and the interface of the editor could be customized with CSS 😵

Notes Editor

My GitHub Gists

Just small codes and notes which I thought wasn't worth to create a repository.

Random Facts

  • I've been working remotely since 2015, and I fully recommend it!
  • I got my first computer when I was around 10 years old, a 486-DX2. I've learned how to use it by spying my cousin giving classes about DOS (not DoS 👀), so I still remember something about: devicehigh=xyz, deltree, typing win to start the Windows 3.11, turbo button, sound blaster kit, cleaning the mouse ball, zipdrive, SCSI (the super fast disk that nobody had 😁), etc.
  • I've got access to the computer after finding the key (yeah, computers had locks) and discovering the password (which was errrrr "password" in my language 🤦‍♂️).
  • I've joined the internet after listening to some guys discussing about it and HTML in the classroom... I've got curious and once I arrived at home, I found an AOL CD and installed it, but well, it required a modem... Hopefully I remembered my cousin was talking about it, when he was setting up a Dial-Up connection to play Duke Nukem online (a real WTF at the time and, I still don't know from where he took all this knowledge haha), so I found a great 13.4 Kbps modem in a box with old hardware pieces, cut some cables and it just worked! I still remember about using the internet at night to save money, losing the connection when someone was calling and the introduction of "download resumers" was awesome 😎
  • I still feel proud about my old codes, since I've created a binary parser (which was used by the MongoDB Driver), a big number library and other things in JS, some years before they were introduced to the language, it's cool when you get random (as I totally didn't need these things) ideas and make them work =]
  • Given that frontend has changed a lot these days, I don't have a specific preference to work in the backend/frontend anymore (which used to be the backend).
  • I took part into the contest where the creator of JQuery (John Resig) was starting to become popular haha (our entry is the number #2, John's entry is #3).
  • I've started reading about web stuff around 1997... It was the time when everybody was using AOL, chatting rooms (who knew how to write rainbow texts was considered a hacker haha), Yahoo Groups, SubSeven (o_O) and etc... I've got a 30-50 pages Word document and it was just enough to learn HTML/CSS. It was also talking about JavaScript, but I didn't get the idea (why do I need this?!)... Errrrrr, not until I discovered it was used to create those cool mouse trails, blinking radios and etc. 😂
  • I've won a video game championship when I was a child (and others at my worker place), the older guys which lost for me, were praising me as a god 😂🏆
  • My first paid task was digitizing monographies when I was around 13. I have nothing to complain, any amount of money is a treasure for a teenager haha.
  • My first programming language was JavaScript.
  • My favorite type of task is improving performance and diving into weird bugs.
  • My first home page is still accessible through the https://archive.org, but I'll never reveal its address! Some close friends must still remember about it 👀
  • I've got my first programming job around 2001, a kind of freelance job to work on the integration of a machine to test the cushioning system of cars using Object Pascal/Delphi (I didn't receive my last paycheck 😑). After that I've moved to another company which was building hardware to teach children, doing the same type of job... At a certain time, I've decided to join a university (which was just finished around 2014 due to the creation of remote courses)... There I was solving the exercises using minified codes in C, the teacher got interested in my skills and indicated me to work in a company which was developing mobile applications in C/C++. After that I've moved to a digital agency and I've been working with web related technology since then, mostly using C#, PHP and JavaScript.
  • I've been once a victim of a kind of social engineering attack... When I was 16, a friend of mine asked me to take a look on a game that he made and it had a hidden keylogger haha (that day I realized how ineffective antivirus were against unknown threats haha)... Hopefully he warned me later! These days I was looking for him in internet and looks like he became famous for earning prizes in online promotions, such as a CAR haha... I have a small guess about how he got the prizes 👀
  • I've been once a victim of a ransomware as well! Someone connected to my MySQL database years ago and renamed the databases to form a message asking for money (after that I've finally became a bit psycho with security) 💩
  • My favorite PC games were Euro Fighter 2000 (a flight simulator), Full Throttle, Indiana Jones, Quake, Duke Nukem and Warcraft, countless hours spent on them... The most revolutionary one was Carmageddon, my family was just shocked! Then it came a lot of trash games + the infinite Battlefield/Counter-Strike (I was the AK guy) seasons, which were then replaced by eternal (successful, but full of hatred against the game's AI) FIFA seasons, until I got retired from games 😂
  • I don't trust in the current state of crypto currency, but digital money is here to stay (I can't remember last time I've touched bills/coins)... Also descentralization in general sounds great given our failed leaderships.

GitHub stats Top Langs

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Popular repositories

  1. My solutions to exercises and tests at http://codility.com.

    C# 27 30

  2. A code editor with support for dozens of languages, syntax highlighting, JavaScript macros/plugins, personalized smart indenting, debugger, folder search, etc.

    Pascal 7 8

  3. Persistent tree structure written in Pascal that can handle binary data.

    Pascal 4 2

  4. Math expression evaluator written in Pascal using pointers.

    Pascal 3 1

  5. A Delphi component offering resizeable shapes and also a container where it can be created.

    Pascal 3 1

  6. A Pascal stream class that is implemented as an interface, thus offering reference-counting.

    Pascal 3 3

276 contributions in the last year

Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Mon Wed Fri
Activity overview
Contributed to pkp/pkp-lib, jonasraoni/hackerrank, jonasraoni/jonasraoni and 5 other repositories

Contribution activity

June 2021

Created 4 commits in 1 repository
Reviewed 1 pull request in 1 repository
pkp/pkp-lib 1 pull request

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