Member Spotlight

Lucas da Costa


Member Since October, 2021

I’m a Brazilian software engineer, published author, and international speaker living in London. I’m passionate about open-source, and, for the past few years, I have been a maintainer of Chai.js and Sinon.js (two of the most popular testing libraries in the JavaScript world). Furthermore, I significantly contributed to numerous projects, including Jest and NodeSchool. As an author, I’ve written Testing JavaScript Applications, a book published by Manning Publications. I’ve spoken in more than ten countries and have had my content translated into Russian, Mandarin, French, Portuguese, and Spanish.

command line interfaces

Whenever possible, don't simply guess, look at historical data and use statistics :)

Lucas da Costa

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