Hello!
I’m a Brazilian front-end developer living in London. This website features some of my latest projects and my thoughts on anything web related.
You can find me on Twitter, Instagram, and LinkedIn.
Wanna talk? Send me a message.
Error Handling in Fetch
May 27, 2023Have you ever wrapped your on a block to catch 4xx and 5xx errors, and it didn't work? This happens to me more frequently than I would…
Sliding Puzzle Game in JavaScript
March 12, 2023The other day I stumbled upon a Sliding Puzzle Game on Wikipedia and I thought it would be a fun weekend project to build it in JavaScript…
event.target vs event.currentTarget - What is the difference?
January 29, 2023This is a common question that I ask myself sometimes, the easiest way I find to explain is as follows: is the element where the event…
How to fix 'dangerouslySetInnerHTML did not match' error in React.js
December 27, 2022This is an issue I come across every once in a while and it always takes me a couple hours to figure it out. Replicating the issue Let's say…
Book Notes #8: Why We Sleep: The New Science of Sleep and Dreams
March 13, 2021Never thought I'd be reading and enjoying a book about sleeping. Insightful, and oddly entertaining. And yes, I do get the irony of reading…
In Defense of Testing
February 28, 2021An analogy to software testing with Jenga and Lego
Book Notes #7: How to Make Coffee: The Science Behind the Bean
February 21, 2021Short and sweet. A quick read that goes straight to the point. A 4-star rating on my GoodReads. Here are my highlights: (...) they are made…
Book Review: TypeScript In 50 Lessons
February 20, 2021I've started incorporating TypeScript into my daily code not too long ago. Skeptical at first, the loosely typed nature of JavaScript never…
Book Notes #6: Craft Coffee: A Manual - Brewing a better cup at home
November 29, 2020From start to finish, an easy read. Informal, yet very educational. No non-sense, straight to the point. The type of book you'll keep around…
Quote #4
October 17, 2020“There are two kinds of forecasters: those who don’t know, and those who don’t know they don’t know.” — John Kenneth Galbraith
Tech Review for Responsive Web Design 3rd Edition
June 27, 2020Over the past several months I've been working with Packt Publishing as a technical reviewer for their new release: Responsive Web Design…
Book Review: Click! - How to Encourage Clicks Without Shady Tricks
June 06, 2020I'm an engineer. I like going straight to the point and find an answer to a problem. That's why I'm usually put off by books on business…
Quote #3
May 31, 2020“To endure uncertainty is difficult, but so are most of the other virtues.” — Bertrand Russell
Book Notes #5: The Remarkable Life of the Skin
May 23, 2020A book that manages to be entertaining, scientific and throughout informative, The Remarkable Life of the Skin: An Intimate Journey Across…
Baseliner 6.0 is out!
April 18, 2020Baseliner, my very own Chrome Extension has finally been published. An extension for designers and developers who care about grid alignment…
Getting a nested property of an object with dot notation
January 18, 2020Let's say you have a JSON file with your data. You parse it into an object literal: Your app (maybe your CMS, or an i18n library) asks for…
I used meditation apps for a year and here is what I found out
January 05, 2020I always had some interest in meditation. In the past, I played around with the idea via yoga classes. It was a mix of positions, breathing…
Book Review: Inclusive Components - Accessible web interfaces, piece by piece
January 03, 2020Accessibility. If you work with web development you must've heard about this term lately. It is becoming popular topic on conferences…
Quote #2
January 01, 2020“Respond; don’t react. Listen; don’t talk. Think; don’t assume.” — Raji Lukkoor
Beer Log #2 - Birrificio B63
December 26, 2019During my Christmas break I left the never ending overcast skies of London for the sun and (really) cold weather of the Valle d'Aosta, in…
Updating CSS Custom Properties with JavaScript
December 08, 2019I ran into an issue this week: needed to update the colour of a pseudo element (i.e. ) of an element. The problem is that pseudo elements…
Book Notes #4 - Factfulness
December 07, 2019If I would sum up this book in a short sentence it would be "numbers don't like but liars use numbers". It's a class on data interpretation…
Book Notes #3 - Beer School: A Crash Course in Craft Beer
December 01, 2019Written by the folks from very entertaining YouTube channel The Craft Beer Channel, the book functions both as an introduction to beer and…
Book Notes #2 - No Hard Feelings
November 24, 2019A mixture of self-help and workplace guide, No Hard Feelings: Emotions at Work and How They Help Us Succeed , by Liz Fosslien & Mollie West…
Converting CSV to Array of String
November 09, 2019This past week I've been doing a lot of spreadsheets and data manipulation and I needed a quick way of converting a CSV file to an usable…
Debugging Arrow Functions with console.log
November 02, 2019Something that always annoyed my about one-line arrow functions is that whenever I need to debug them, I need to open up a block of curly…
Book Notes #1 - Zero: The biography of a dangerous idea
October 12, 2019Just recently finished Zero - The Biography of a Dangerous Idea, by Charles Seife. I definitely recommend this book (a 5-star rating on my…
Beer Log #1 - Hawkshead Brewery
June 08, 2019Back in April, I've managed to book a short hiking trip to Lake District - by far my favorite place in the UK. We hiked the Helvellyn…
Quote #1
May 06, 2019“If you absolutely can't tolerate critics, then don't do anything new or interesting.” — Jeff Bezos
React Amsterdam 2019
April 14, 2019This weekend I had the privilege to attend the biggest ReactJS conference in the world - React Amsterdam. Day 1 - Meetup Fail My trip…
Back to Basics
March 30, 2019It's been a long time since I wrote anything on this site. So, as any web developer would do, I decided to rewrite the whole site instead…
Fun with Browser APIs: Speech Synthesis
May 09, 2018On the previous post, I showed how you can use the Web Speech API to translate speech to text using Speech Recognition. Today, I'm going to…
Fun with Browser APIs: Speech Recognition
March 04, 2018On this third post about browser APIs we're gonna talk about audio, or more specifically, speech. The Web Speech API is compromised of two…
Fun with Browser APIs: Shape Detection
February 03, 2018This is the second instalment of Fun with Browser APIs, and today I'm going to talk about Shape Detection. Spec in draft stage This is a…
Fun with Browser APIs: Media Stream Image Capture
January 26, 2018Fun with Browser APIs is a series of posts in which I introduce one or more APIs that you might not heard about or used. This first one on…
Accessibility Tests with Pa11y & Node
January 10, 2018In this article I'm going to show you how to automate your accessibility testing with just a little amount of JavaScript and a great library…
Book Review: Web Performance In Action
August 20, 2017For the past 2 years, my work has had a focus on delivering fast experiences on the web. I've also kept an eye on any article, tweet or…
Progressive Web Apps
December 29, 2016In the past couple of months I've been reading quite a lot about Progressive Web Apps. The term is getting very popular especially due to…
Book Review: Using WebPageTest
August 29, 2016You can't start talking about performance without hearing about WebPageTest. It's by far the most complex and useful synthetic tool…
What's the deal with renaming files in Git?
June 11, 2016If you try renaming a file in your project, you might notice this weird behaviour when checking its status: `$ git status On branch master…
Understanding Bandwidth vs Latency Through An Analogy
May 14, 2016To understand how performance can affect your website, it's important to understand common terms and which part they play in a network…
request anim frame
May 08, 2016request animation frame JSJ web performance 18:00 const foo = function (bar) { let baz = 2; for (baz ; baz++ ; baz <10){ console.log(baz…
Web Education
April 23, 2016It's Sunday morning. I've just read some articles on CSS and for some reason started browsing Stack Overflow on that subject, specifically…
Aggregating Google Analytics Browser Statistics with r2d2
March 27, 2016I love Google Analytics but the browser usage stats always annoyed me. Since modern, evergreen browsers release features very frequently…
Web Ethics
March 20, 2016Once again Start Your Shift brought me another puzzling topic to write about: Web Ethics. It's in the news It took me a while to come up…
Thoughts on Front-end Tooling
February 28, 2016Being a front-end developer means keeping up with current trends. It doesn't mean you have to master them all, however you are expected to…
Compromise - Balancing Project Needs with Internal Ideals
February 20, 2016Every new project is a new opportunity. It's when you use your past experience and have the chance to build something better than you did…
How to Make the Web Better
January 29, 2016When #startYourShift asked us to write about how to make the web better I could not help but think about my own journey on the web. In the…
Workflow: From Design to the Browser
October 04, 2015What is the best way to code a design piece to the browser? Lately, I've been questioning myself if the process I use is the proper one or…
Baseliner: My First Chrome Extension
August 30, 2015I've build a small tool a while ago to help me align elements on a page and keep the baseline consistent. It adds a customisable horizontal…
Being a Technical Book Reviewer
July 05, 2015A couple months ago I was approached by a book publishing company. They found this website through one of my book review posts and wanted me…
Book Review: Expert JavaScript
October 26, 2014Being a frontend developer means not only knowing your tools pretty well but also understanding how and why they behave the way they do…
Book Review: The Mobile Book
December 25, 2012Mobile development, responsive web design, flexible layouts for devices. There are so many posts, articles and books coming out about this…
Finding a job in web design and development
November 18, 2012Searching for a new job is a stressful and time-consuming task. When I moved to London a couple of months ago I had this experience once…
Done Is Beautiful
October 14, 2012Side projects are important for every professional. It takes your mind away from day-to-day work and let you explore and go further without…
Vertically Centering Images with HTML & CSS
August 03, 2012Here is a quick trick whenever you need to vertically centre an image (or paragraph, or any other element) inside its parent container…
What Is Media Queries And How To Use Them
July 07, 2012Mobile, tablets, netbooks... today people access websites using a variety of computers and gadgets and that is great, it enable us to reach…
Book Review: Smashing Book 3
June 20, 2012Well, I guess third time's the charm because Smashing Magazine finally made it. Their third volume hits the nail on all chapters and it's…
HTML5 & CSS3 Curriculum Vitae (Résumé) Template
May 09, 2012I was tired of my old CV and lately I was using the LinkedIn auto generated PDF CV, which is quite nice and handy but it lacks personality…
HTML5 and CSS3 Boilerplate files
February 28, 2012Boilerplate is a set of files composed to be used over and over again. In front-end development (any area actually), starting from scratch…
CSS Only Drop Down Menu
February 01, 2012Drop Down menu is an excellent alternative for complex menus, the ones with a variety of categories and subcategories to choose from. In…
Book Review: Smashing Book 2
January 18, 2012A couple months ago I finished reading The Smashing Book 2 from the popular web design blog Smashing Magazine. Just like with the first book…
So... I Finally Redesigned My Site
January 13, 2012Nearly 4 years ago, back in 2008, I decided to create a blog and write about all the stuff I was reading and doing, mostly web related. Took…
PSD To HTML - Step By Step
December 13, 2011get psd write html first to ensure semantics (or bit by bit for testing purposes / create styleguide first) write css for most updated…
HTML Coding For E-mail Marketing
July 21, 2011Creating a successful e-mail marketing campaign requires several items: a valid product or service to offer, selected target audience and…
Book Review: Hardboiled Web Design
June 16, 2011Andy Clarke's long-waited book, Hardboiled Web Design, brings new ideas on website development. It's packed with HTML5 and CSS3 but with a…
Creating Expandable Banners with Flash and Javascript
June 04, 2011A very popular ad type in portals and blogs, the expandable banner is a useful technique to display more content to a banner. It's a very…
Please Start From The Beginning...
February 20, 2011A couple of weeks ago I had the pleasure of doing some transcription work for the podcast called "Please start from the beginning...", a…
Photoshop: Quick Guide to Smart Object & Smart Filters
January 18, 2011Smart Object and Smart Filter are two extremely useful features in Photoshop that will boost your design productivity. This is an easy to…
Cross Browser Testing Resources
June 15, 2010Following up on my article about using or not IE6, I've selected a few tools to help you test your website on different browsers. Most of…
Book Review: Logo Design Love
March 30, 2010If you are into branding and logos then you probably know David Airey. His knowledge in the graphic design field has generated two well…
How to Make the Most of Design Tutorials Without Losing Your Soul
February 25, 2010Design blogs are a great source of articles, news and resources - specially if you use mainstream softwares like Photoshop and Illustrator…
Know Your Type: Part 2 – Type Categories
December 31, 2009In this second part of typography articles we are going to learn the categories in which a type can be classified. Knowing the terms and…
Book Review: Making and Breaking the Grid
December 16, 2009Making and Breaking the Grid, by Timothy Samara, is an analysis of the construction and deconstruction of grid-based designs. Featuring a…
Portfolio: Hooke & MacDonald
November 04, 2009Hooke & MacDonald is one of the major real estate agencies in Ireland, specially in the new homes market. They requested 4pm to come up with…
Why Should I Care About IE6?
October 27, 2009Firefox, Chrome, Safari, Internet Explorer, Opera. Developing websites to match all these browsers is no easy job. And don't even start…
Know Your Type: Part 1 - Anatomy
October 14, 2009Typography is a field that is quite new to me. Coming from a developer background, I did not study type the way graphic designers do…
3 Image Techniques To Speed Up Your Website
September 29, 2009In this post I'll show you 3 useful techniques to speed up the display and download of images on your website: Css Sprites, Image Maps and…
Book Review: Don't Make Me Think!
September 22, 2009What comes to your mind when you think about usability in web design? "Less clicks is better"? "Design to the average user"? "Content is…
Portfolio: Coldwell Banker Ireland
September 15, 2009Coldwell Banker is a world wide known real estate company with a wide range of property markets such as Residential Homes, Apartments, Land…
How to Photograph Textures For Websites
September 08, 2009It's great to see how much the use of textures in websites has increased in the past months. They are an effective way of adding flavour and…
15 Amazing Beer Bottle Designs
August 29, 2009From all the different fields of print design the one that always gets my attention is the beer bottles design. It's a saturated market and…
Portfolio: iWord
August 24, 2009In this project I was requested to not only redesign their current page but to come up with 2 animated banner ads, which will be featured on…
Book Review: Sexy Web Design
August 15, 2009Have you ever wondered if your design process is the right one for your projects? Have you ever thought that maybe there's a step missing or…
Random Illustrations: Part 1
August 12, 2009Random Illustrations is going to be a series of posts featuring my drawings on random subjects. Hope you enjoy it! Today's drawing: Abstract…
Great Websites for Vintage Resources & Inspiration
August 06, 2009Vintage - or Retro - design is the style that uses techniques, colours or shapes used in the past. I am a big fan of this style and in this…
Book Review: Thinking with Type
July 25, 2009I must admit that typography wasn't always my favourite field in design. Until a couple years ago fonts and texts were mere supporting…
Creating Your Own Portfolio Website - Single Page, Full Site or Blog style?
July 18, 2009After spending several months developing this website and facing different issues throughout the project, I've learnt a few things about the…
Book Review: The Brand Gap
July 04, 2009Branding books don't have to be huge or full of complicated theories, they can be fun, practical and inspiring. The Brand Gap, by Marty…