In Dart, a struct is defined using the struct keyword. A struct is a collection of related items, called fields that can contain different types of data. Structs are used to group related data together, and they provide a way to represent complex structures in code. The struct is immutable, which means that once a struct object is created, its properties cannot be changed.
Here's an example of how to create a struct in Dart:
struct User {
final String name;
final int age;
final String email;
User(this.name, this.age, this.email);
}
In this example, we define a User struct with three fields: name, age, and email. The struct is defined as final, which means once created, its values cannot be changed.
To create an instance of the User struct, we can use the following code:
var user = User("John", 30, "john@gmail.com");
We can access the values of the struct using the dot notation:
print(user.name); // Output: John
print(user.age); // Output: 30
print(user.email); // Output: john@gmail.com
We can use structs to group related data, which may help promote readability and modularity in our code.