Interfaces
In TypeScript, interfaces play a pivotal role in defining the shape or structure that objects should adhere to. They don't get compiled into JavaScript and exist only for static type checking. When you define an object based on an interface, the object must fulfill the shape required by that interface.
interface Dog {
name: string;
age: number;
}
Using the above interface, any object declared with type Dog should have both a name property of type string and an age property of type number.
An interface may also have optional fields, denoted using the ? operator, as follows:
interface Dog {
name: string;
age: number;
vaccinated?: boolean;
}
This interface allows omitting the property vaccinated if a person does not want to specify
if his dog was vaccinated or not.
Exercise
Your task is to create an interface named Car. This interface should possess two properties: model, which will be a string, and year, a number. Once you've defined the interface, make an object that fits the criteria set by the interface.
Sponsors
