Table of Contents

Overview

In this tutorial, we will learn about Mojo Functions. A Mojo function is a self-contained block of code that performs a specific task. Functions organize code into manageable pieces to improve readability and promote reusability.

Mojo Functions

We can use the following keywords to declare Mojo Functions:

The fn function enforces strict type checking and memory safety by requiring explicit type declaration and preventing accidental argument mutation.

Example

Let’s understand using an example. The code example snippet has two functions. One function is defined using the “def” keyword, and the other uses the “fn” keyword.

# Mojo function to add two numbers

# Mojo Tutorials — www.TestingDocs.com

def add(x: Int, y: Int) -> Int:

return x + y

# Entry point of the program

fn main():

try:

var result = add(7,9)

print(result)

except:

print(“Error”)

Save, compile, and run the Mojo code. This should print the result 16 on the screen.