Due to the functional behaviour of OCaml, it helps to quickly adapt changing market conditions and go from prototypes to production systems with less effort.
OCaml is a functional language, with great support for first-class functions and immutable data structures. Similarly to the above, when you’re doing type checking, you end up doing a lot of different kinds of maps and folds over Abstract syntax tree nodes, and functional languages express that really concisely.
Hack is a compiler for a variant of PHP that aims to reconcile the fast development cycle of PHP with the discipline provided by static typing.
Infer is another static code analysis tool developed by Facebook along with open-source contributors. Infer used to check for null pointer exceptions, resource leaks, annotation reachability, missing lock guards, and concurrency race conditions in Android and Java code. This helps to identify critical bugs before product released to the production environment and help to identify crashes or poor performance.