ReasonML: First Look

Need a type-centric language for the web? Learn about the most salient features of ReasonML, a new syntax and toolchain that leverages the power of both JavaScript and OCaml.

Introduction

• Why ReasonML could be the language for you
• Base knowledge and setup

1. ReasonML Fundamentals

• Variables and data types
• Functions and annotations
• Decisions with if and switch expressions
• Output with Js.log()
• Challenge: Quadratic formula
• Solution: Quadratic formula

2. The ReasonML Type System

• Creating your own data types
• Say goodbye to null and undefined
• Creating modules for reusable code
• Using collection types
• Creating record types
• Challenge: Generating random cakes
• Solution: Generating random cakes

3. Interoperating with JavaScript

• Web pages with ReasonReact

Conclusion

• Explore ReasonML resources