ReasonML versus BuckleScript

[peerreynders]

by J. David Eisenberg

ReasonML is a new, type-safe, functional language that compiles to efficient, readable JavaScript. ReasonML interoperates with existing JavaScript libraries and works especially well with React, one of the most popular front-end frameworks. Learn how to take advantage of the power of a functional language while keeping the flexibility of the whole JavaScript ecosystem. Move beyond theory and get things done faster and more reliably with ReasonML today.

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ReasonML is a new syntax for OCaml, a battle-tested programming language used in industry for over 20 years. Designed to be familiar to JavaScript programmers, ReasonML code compiles to highly readable JavaScript. With ReasonML, you get OCaml’s powerful functional programming features: a strong static type system with an excellent type inference engine, pattern matching, and features for functional programming with immutable variables. ReasonML also allows flexibility with opt-in side effects, mutation, and object-oriented programming. ReasonML hits the sweet spot between the pure theoretical world and the laissez-faire approach of JavaScript.

Start using ReasonML’s powerful type system as you learn the essentials of the language: variables and arithmetic operations. Gain expressive power as you write functions with named parameters and currying. Define your own data types, and integrate all these capabilities into a simple web page. Take advantage of ReasonML’s functional data structures with map and reduce functions. Discover new ways to write algorithms with ReasonML’s recursion support. Interoperate with existing JavaScript libraries with bindings, and write reactive web applications using ReasonML in tandem with React. Reinforce concepts with examples that range from short, tightly focused functions to complete programs, and practice your new skills with exercises in each chapter.

With ReasonML, harness the awesome power of a functional language while retaining the best features of JavaScript to produce concise, fast, type-safe programs.

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J. David Eisenberg is a programmer and instructor at Evergreen Valley College in San Jose, California. He is co-author of several books on programming technology (SVG, Elixir, Erlang, and ClojureScript). David’s interest in foreign languages has led him to write online tutorials for Korean, Modern Greek, and Russian. He is also a cat person.

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Announcement: Web Development with ReasonML, in beta (Newsletter)

J. David Eisenberg is also author of Études for Elixir (Études for Erlang, Études for ClojureScript) and coauthor of Introducing Elixir (O'Reilly)