ReasonML has been skyrocketing in popularity lately, and for good... reason. Very recently developed by Facebook, it provides users a strong-typed, clean, and efficient syntax for JavaScript, which makes it great for web development. 

This course will get you up to speed programming in Reason. You'll start by learning how to create simple data objects and build up to more powerful tools such as functions and data structures. Along the way, interactive quizzes and exercises will help you gain a stronger grasp of the language.

Anyone looking to put themselves on the cutting-edge of web development would be well served to have a look at this course.

Functional Programming with ReasonML

## What are Polymorphic Functions?

>Polymorphic functions are functions that work with several data types. 

Since Reason is a strongly-typed language, we often explicitly define the type of our values. 

Applying this rule to function parameters, we would end up with the same function being redefined again and again for different data types. 

Here is an example:

# What are Polymorphic Functions?

>Polymorphic functions are functions that work with several data types. 

Since Reason is a strongly-typed language, we often explicitly define the type of our values. 

Applying this rule to function parameters, we would end up with the same function being redefined again and again for different data types. 

Here is an example:

This lesson will show us how functions can adapt the principles of polymorphism.

A Brief Introduction

Data Types

Identifiers

Data Structures

Conditional Expressions

Functions

Loops

Variants

Objects

Polymorphic Functions

What are Polymorphic Functions?