Distinguished Engineering, Your Brain & Fish! 🐠— also, Node.js worker_threads, React, AWS Lambda ➕➕

Below, you can find the Pony Foo Weekly newsletter issue #160 — Distinguished Engineering, Your Brain & Fish! — also, Node.js worker_threads, React, AWS Lambda
. It was sent to our subscribers on March 28, 2019.

Pony Foo Weekly Issue #160 — March 28, 2019

We’re glad you could make it this week!

With your help, we can make Pony Foo Weekly even more awesome: send tips about cool resources.

Slightly Off-Topic

The Action Pattern: Clean, Obvious, Testable Code

Article

Let’s convert a mock API endpoint for signing up new users in a mobile app into using the action pattern.

Ryan Glover

Free visual testing with Percy

Replace time-consuming manual QA to catch visual UI bugs automatically. Percy’s all-in-one visual testing platform makes it easy to review visual UI changes across browsers and responsive widths.

Your Cortex Contains 17 Billion Computers

inspiration

There’s a neural networks of neural networks in your brain. Be ready to have your mind blown!

Mark Humphries

The Mysterious Case of the Two Frigid Fish

inspiration

A scientist faced down the ultimate cold case: How did two groups of fish separately evolve genes for making antifreeze?

Ed Yong — The Atlantic

Find A Dev Job Through Vettery

Vettery specializes in developer roles and is completely free for job seekers. Interested? Submit your profile, and if accepted, you can receive interview requests directly from top companies growing their dev teams.

Slightly On-Topic

Disguise-Driven Testing: Jest Mocks in Depth

Article

Testing can be simple. In fact, it is simple. Well, it is simple until impurities slip in. Code that would be easy to test becomes a nightmare as soon as you get impure …

Joe Morgan

Security newsletter

A weekly e-mail that condenses last week’s security news into 10 or so items worth knowing about.
It is designed to keep you up-to-date with minimal effort, and also has an RSS feed.

Guide to threads in Node.js

Deep Dive

Maciej explains how we can execute complex operations in Node.js with the worker_threads module.

Maciej Cieślar

Global state in AWS Lambda with Async Hooks

Article

Collin leverages the experimental Async Hooks API to support global state within AWS Lambda functions. An interesting solution to a common problem.

Colin Eberhardt

React Component Types: an overview

Introductory

Robin introduces the different interfaces React offers to writing components, like createClass, class components, and function components.

Robin Wieruch

HTML and Friends

Scope in CSS

Article

Peter discusses CSS custom properties, native CCS selector nesting, and scoping.

Peter-Paul Koch

Hidden Content and Accessibility

accessibility

It’s important to ensure our websites are accessible to everyone, regardless of whether or not they use a screen reader, but with this myriad of options, how do we know when to use what?

Paul Hebert