| # Using Structs to Structure Related Data |
| |
| A _struct_, or _structure_, is a custom data type that lets you package |
| together and name multiple related values that make up a meaningful group. If |
| you’re familiar with an object-oriented language, a struct is like an object’s |
| data attributes. In this chapter, we’ll compare and contrast tuples with |
| structs to build on what you already know and demonstrate when structs are a |
| better way to group data. |
| |
| We’ll demonstrate how to define and instantiate structs. We’ll discuss how to |
| define associated functions, especially the kind of associated functions called |
| _methods_, to specify behavior associated with a struct type. Structs and enums |
| (discussed in Chapter 6) are the building blocks for creating new types in your |
| program’s domain to take full advantage of Rust’s compile-time type checking. |
