Why ReasonML?

So why have we chosen ReasonML over something else? For example, TypeScript and Flow are popular languages that target JavaScript today (among many others), but we chose Reason because:

• It has a powerful and elegant type system, which neatly fits together many type-driven development concepts
• Its JavaScript compiler (BuckleScript) has incredibly fast compiles, optimization, and high-quality dead-code elimination; fast compiles are great to have if you’re doing type-driven development, and performant code is great to have in any system
• It has a very helpful and enthusiastic community that's very accessible
• It gives you access to the mature OCaml community and its aggregated knowledge base

We will take advantage of the contrasts between the two languages to understand how statically typed Reason code is converted into dynamically typed JavaScript code yet still runs safely by design.