Mojo Manual

Welcome to the Mojo Manual, a complete guide to the Mojo🔥 programming language!

Mojo is designed to solve a variety of AI development challenges that no other language can, because Mojo is the first programming language built from the ground-up with MLIR (a compiler infrastructure that's ideal for heterogeneous hardware, from CPUs and GPUs, to various AI ASICs). We also designed Mojo as a superset of Python because we love Python and its community, but we couldn't realistically enhance Python to do all the things we wanted. For a longer discussion on this topic, read Why Mojo.

Beware that Mojo is still a very young language, so there's a lot that hasn't been built yet. Likewise, there's a lot of documentation that hasn't been written yet. But we're excited to share Mojo with you and get your feedback.

Contents

• Get started

  • Get started with Mojo
  • Hello World!

• Language basics

  • Introduction to Mojo
  • Functions
  • Variables
  • Structs
  • Modules and packages

• Value ownership

  • Intro to value ownership
  • Value semantics
  • Ownership and borrowing

• Value lifecycle

  • Intro to value lifecycle
  • Life of a value
  • Death of a value

• Traits and parameters

  • Traits
  • Parameterization: compile-time metaprogramming

• Python

  • Python integration
  • Python types

• Tools

  • Debugging

• Project information

  • Roadmap and sharp edges
  • Changelog
  • FAQ
  • Community