typescript use interface as type code example

Example 1: typescript class implements interface

interface Task{
    name: String; //property
    run(arg: any):void; //method
}

class MyTask implements Task{
    name: String;
    constructor(name: String) {
        this.name = name;
    }
	run(arg: any): void {
        console.log(`running: ${this.name}, arg: ${arg}`);
    }
}

let myTask: Task = new MyTask('someTask');
myTask.run("test");

Example 2: typescript interface vs type

// for starters:
// interfaces and types are very similar, they just differ in syntax

// interface
interface Car {
  name: string;
  brand: string;
  price: number;
}

// type
type Car = {
  name: string;
  brand: string;
  price: number;
}

// interface
interface Car extends Vehicle {
  name: string;
  brand: string;
  price: number;
}

// type
type Car = Vehicle & {
  name: string;
  brand: string;
  price: number;
}