1 Some basics

This chapter covers

Introducing Rust
Using comments (putting human-readable hints in your code)
Some primitive types (simple numbers and other simple types)
Type inference (how Rust knows the type)
“Hello, World!” and printing
Declaring variables and code blocks
Shadowing (giving variables the same name)

This first chapter is as easy as Rust gets and has a bit of everything to get started. You’ll notice that even in Rust’s easiest data types, there’s a strong focus on the bits and bytes that make up a computer’s system. That means there’s quite a bit of choice, even in simple types like integers. You’ll also start to get a feel for how strict Rust is. If the compiler isn’t satisfied, your program won’t run! That’s a good thing—it does a lot of the thinking for you.

1.1 Introducing Rust

1.1.1 A pep talk

1.1.2 Rust is like a critical spouse

1.2 Comments

1.3 Primitive types: Integers, characters, and strings

1.4 Type inference

1.5 Floats

1.6 “Hello, World!” and printing

1.7 Declaring variables and code blocks

1.8 Display and Debug

1.9 Smallest and largest numbers

1.10 Mutability (changing)