TypeScript supports a handful of built-in types; the following are examples of the most common ones:

const fullName: string = "John Doe";
const age: number = 6;
const isDone: boolean = false;
const d: Date = new Date();
const canBeAnything: any = 6;

As you can see, TypeScript supports basic primitive types such as string, number, boolean, and date.

Another thing to notice is the type any. The any type is a valid TypeScript type that indicates that the declaration can be of any given type and all operations on it should be allowed and considered safe.