| # Common Programming Concepts |
| |
| This chapter covers concepts that appear in almost every programming language |
| and how they work in Rust. Many programming languages have much in common at |
| their core. None of the concepts presented in this chapter are unique to Rust, |
| but we’ll discuss them in the context of Rust and explain the conventions around |
| using these concepts. |
| |
| Specifically, you’ll learn about variables, basic types, functions, comments, |
| and control flow. These foundations will be in every Rust program, and learning |
| them early will give you a strong core to start from. |
| |
| > #### Keywords |
| > |
| > The Rust language has a set of _keywords_ that are reserved for use by the |
| > language only, much as in other languages. Keep in mind that you cannot use |
| > these words as names of variables or functions. Most of the keywords have |
| > special meanings, and you’ll be using them to do various tasks in your Rust |
| > programs; a few have no current functionality associated with them but have |
| > been reserved for functionality that might be added to Rust in the future. You |
| > can find a list of the keywords in [Appendix A][appendix_a]<!-- ignore -->. |
| |
| [appendix_a]: appendix-01-keywords.md |
