TypeScript is a good example of a language that received widespread adoption due to its ease of integration with regular JavaScript. Another lesser-known examp

TypeScript is a good example of a language that received widespread adoption due to its ease of integration with regular JavaScript. Another lesser-known example is ReasonML [0], which is supposed to integrate really well with JavaScript and OCaml. Based on my experience, it's still young with plenty of rough edges but it's very promising. [0] https://reasonml.github.io/ https://reasonml.github.io/