Gain insights into Elixir's functional programming fundamentals, explore expressions, modules, conditional statements, recursion, and delve into advanced topics like higher-order functions and application design. Discover Elixir's vibrant community and tooling.

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Elixir is a functional programming language that runs in the Erlang VM, a powerful environment to run distributed systems. This course uses Elixir because of its fun syntax, vibrant community, and production-ready tooling. Elixir syntax lets you focus on what’s important while learning functional programming.

Starting from scratch, you will learn the fundamentals of Elixir including expressions, modules, conditional statements, and recursion. Towards the end of the course, you will focus on more advanced material like higher-order functions, how to handle impure functions, and lastly how to design an application using Elixir and functional programming principles.

By the end, you will be able to write basic Elixir programs that follow the functional programming paradigm.

Learn Functional Programming with Elixir

# Generating results for expressions

Elixir can generate a result for any expression. The process is similar to solving mathematical equations: to generate a result, we must add or multiply some numbers or change some Xs to Ys. We’ll create expressions for the computer, and the computer will show us the result. The simplest expression is a value, like this:

```Elixir
iex> 42
#Output -> 42
```
>IEx shell is present at the end of the lesson to try out the different examples.

The number `42` is an expression that evaluates to the value we typed. Let’s try a different expression:

```Elixir
iex> 1 + 1
#Output -> 2
```
The number `1` is a value, and `+` is an operator. Operators compute values and generate a result. 

## Operator precedence
We can also combine multiple operators and values:

```Elixir
iex> (2 + 2) * 3 
#Output -> 12

iex> 2 + 2 * 3
#Output -> 8
```
Each operator is executed in a particular order, which is called its precedence. For example, `*` has higher precedence than `+`. In an expression that has both operators, the `*` operator will be executed first. we can use parentheses to change the precedence. Expressions within parentheses are computed first. 

>We can always check the operator’s precedence in the [Elixir official documentation](https://hexdocs.pm/elixir/operators.html).

Learn about executing code in Elixir to generate a result.

Getting Started

Introduction to Functional Programming

Working with Variables and Functions

Using Pattern Matching to Control Program Flow

Diving into Recursion

Using Higher-Order Functions

Designing Your Elixir Applications

Handling Impure Functions

Conclusion

Appendices

Executing Code and Generating a Result

Generating results for expressions

Operator precedence