Hack vs R: What are the differences?
Hack: A programming language for HHVM that interoperates seamlessly with PHP. Hack provides instantaneous type checking via a local server that watches the filesystem. It typically runs in less than 200 milliseconds, making it easy to integrate into your development workflow without introducing a noticeable delay; R: A language and environment for statistical computing and graphics. R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, ...) and graphical techniques, and is highly extensible.
Hack and R can be categorized as "Languages" tools.
"Interoperates seamlessly with php" is the primary reason why developers consider Hack over the competitors, whereas "Data analysis " was stated as the key factor in picking R.
AdRoll, Instacart, and Verba are some of the popular companies that use R, whereas Hack is used by Facebook, Slack, and Wizters. R has a broader approval, being mentioned in 128 company stacks & 97 developers stacks; compared to Hack, which is listed in 8 company stacks and 3 developer stacks.