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Testing Private Functions in JavaScript Modules

By Jonah Kagan on

As JavaScript has matured as a language, the module has become the primary unit of code organization. However, as with many facets of JS, modules grew organically from the developer ecosystem (as opposed to being designed as part of the language from the beginning), so they have their flaws – one being that you can […]

The Best Tool for the Join: Scaling Node.js with Unix

By Jonah Kagan on

At Clever we help 1 in 6 schools in the country sync data on an hourly basis from their student information systems (SISes) to the ed tech apps that their teachers and students use. These 20,000 schools sync about 50 GB of data in aggregate – that’s over a terabyte of data per day. While […]