rust / beginner
Snippet
Defining and Using Structs
Structs are custom data types that group related fields together. They work like blueprints for creating objects. Here we define a User struct with three fields, create instances using named fields, and use the struct update syntax (..) to copy remaining fields from another instance.
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struct User {username: String,email: String,active: bool,}fn main() {let user1 = User {username: String::from("alice"),active: true,};println!("User: {} ({})", user1.username, user1.email);let mut user2 = User {username: String::from("bob"),..user1};user2.active = false;println!("User 2 active: {}", user2.active);}
Breakdown
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struct User {
Defines a struct named User with three fields
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username: String,
A username field of type String
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let user1 = User { ... };
Creates a User instance using field init syntax
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..user1
Struct update syntax - copies remaining fields from user1