Beginning Rust: Get Started with Rust 2021 Edition

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

C. MilanesiBeginning Rusthttps://doi.org/10.1007/978-1-4842-7208-4_3

3. Naming Objects

Carlo Milanesi¹  

(1)

Bergamo, Italy

 

In this chapter, you will learn:

• The concepts of “value,” “object,” and “variable”

• The concept of “mutability” of variables

• The difference between initialization and reassignment

• How to avoid warnings for unused variables

• The concept of “Boolean expression”

• Which type of checks are performed by the compiler for assignments

• How some operators can perform both an arithmetic operation and an assignment

• How to invoke functions defined in the Rust standard library

Associating Names to Values

So far, we have seen three kinds of values: strings, integer ...