A few months ago, Jason Grigsby’s [post about autocompletion in forms](https://cloudfour.com/thinks/autofill-what-web-devs-should-know-but-dont/) made the rounds. I loved the idea of allowing users to fill in their credit card details by taking a picture…

A general-purpose Discrete Event Simulation library written entirely in JavaScript

Back in the late 90’s — when I learned JavaScript — we were taught to write the “Hello World” function using a function statement. Like…

Rain generator to help you relax. Background rain sound for relaxing and working.

The modern web wouldn’t be the same without them. We pay tribute to five names that deserve to be better known.

I want to be a designer when I grow up

Undebt: How We Refactored 3 Million Lines of Code Evan H., Software Engineering Intern Aug 23, 2016 Peter Seibel wrote that to maximize engineering effectiveness, “Let a thousand flowers bloom....

Inspired by the Zeit team’s post on the subject, my team at PayPal recently migrated our main server-side codebase to use Async/Await. I’m…

Back in April I shifted into a platform/architect role in my job at PayPal.

The bar is set high for today’s mobile apps. First, apps must meet the standard of quality that app markets expect. Secondly, mobile app users are very demanding. Plenty of alternatives are available to download, so users will not tolerate a buggy app.
Because…

Be the Quantum Leap

Travel the world as a digital nomad. Surf a new beach every morning. Eat a different local cuisine each night. I’m one of them. After 10 years of working in an office, I’ve had the luxury of working…

Here's an overview, case study and comparison to Phoenix of the V part of Rails MVC as experienced across the years.

The story of a major hash table vulnerability, and how it took a decade to uncover and resolve.

With so many amazing designers creating such beautiful animations, any developer would naturally want to recreate them in their own projects. Now, CSS does provide some presets for `transition-timing-function`, which add some level of smoothness and realism…

The ultimate checklist for all serious web developers building modern websites. Make sure your site follows web development best practices.

In the last few years, I’ve seen a lot of code. As a freelancer working on multiple big projects with a lot of people, you’ll inevitably see all varieties of code styles. But I also realized how much writing JavaScript changed over the past years.

Having…

As a designer, your job is to understand your client’s needs. Listening to what they tell you is a good place to start, but it doesn’t end there. You gain much more insight by asking the right ques…

A Tale of Replacing React with Rails, Sinatra 2.0 Pre-Release: What's New and What's Next, Hunting for Great Names in Programming, Fixed Price Ruby on Rails Ops? Seriously?, The Pure Function As An Object (PFAAO) Pattern, and more.