In Rust, a struct is a user-defined data type that allows you to group together related data. It is similar to a class in object-oriented programming languages, but it is not as powerful. Structs can only store data, they cannot have methods.
To define a struct, you use the `struct` keyword followed by the name of the struct and a list of its fields. Each field is a name and a type. For example, the following code defines a struct called `Person` with two fields: `name` and `age`:
struct Person {
name: String,
age: u32,
}
Once you have defined a struct, you can create instances of it. To do this, you use the `let` keyword followed by the name of the instance and the struct's name. For example, the following code creates an instance of the `Person` struct and assigns it to the variable `john`:
let john = Person {
name: String::from("John Doe"),
age: 30,
};
You can access the data in a struct using the dot notation. For example, the following code gets the name of the `john` struct:
let name = john.name;
Structs are a powerful tool for organizing your data. They can help you to make your code more readable and maintainable. If you are working on a project that requires you to store a lot of related data, then structs are a good option to consider.
