Skip to content

pawelgrzybek.com

Top picks — 2020 April

DNS server for families from CloudFlare, interesting CSS elements in new Facebook design, consideration for mocking objects in your unit tests, free GitHub for teams, TypeScript’s type notation, full-height element on iOS Safari and more…

Read more »

Mocking functions and modules with Jest

To write deterministic, repeatable unit tests, we need to control the inputs, outputs and invocations of mock objects. The Jest testing framework comes with great mocking capabilities. Let’s have a look at them all.

Read more »

Book review: The Lean Startup by Eric Ries

“Business” is not the number one category of books that I would usually go for but despite this, I think that it’s good to diverge and embrace a project development from a different perspective.

Read more »

What's new in ECMAScript 2020

The list of new ECMAScript 2020 features is set in stone. Let’s have a look at what’s coming this year and a few practical examples.

Read more »

Top picks — 2020 March

GOV.UK Design System team changed the input type for numbers, MonoLisa — stunning font family designed for software developers, npm is joining GitHub, CSS :nth-of-class selector, imact of CSS on screenreaders and more…

Read more »

Book review: Endurance by Scott Kelly

I have always been curious about the subject of space travel, living in such a distant place and the daily life and routines out there. I couldn’t have picked a better book to satisfy my curiosity.

Read more »

Top picks — 2020 February

The Web We Want initiative, HTTPS Is Easy, new JavaScript bundler coded entirely in a go language, revolutionary TypeScript 3.8 changes, Firefox and Edge Support in Cypress 4.0 and more…

Read more »

Book review: Humble Pi: A Comedy of Maths Errors by Matt Parker

Despite the fact that I have never had a trophy for being the best maths student at school, I always enjoyed mathematics. I can get through some simple equations but everything more challenging than trigonometry or matrices normally ends up being a spectacular fiasco. My failures are very insignificant compared to the ones described in the book that I just read.

Read more »

Book review: Gravitas by Caroline Goyder

I am a constant joker! Most of the time there’s nothing bad about this, but in a senior-level position in big software company, some level of seriousness can be helpful. The power to be a great communicator lies somewhere in-between, doesn’t it?

Read more »