Interfaces and Type Declarations
Video Lecture
Description
In TypeScript, Interfaces and Type declarations offer almost the same exact functionality, in this video we explore that idea. An Interface/Type is a structure used for type-checking. An Interface/Type defines the properties and types an object can have.
interface Quux {
quuz: string;
corge: number;
}
function foo(bar: Quux) {
return "Hello, " + bar.quuz + " " + bar.corge;
}
let baz: Quux = { quuz: "ABC", corge: 123 }
console.log(foo(baz));
Try it,
tsc foo.ts
node foo.js