hellokvn

class Dog {
  public name: string;

  constructor(name: string) {
    this.name = name;
  }

  public makeSound(): void {
    process.stdout.write('wuff wuff\n');
  }

hellokvn

class Animal {
  public name: string;

  constructor(name: string) {
    this.name = name;
  }

  public makeSound(): void {
    process.stdout.write('generic animal sound\n');
  }

hellokvn

function binarySearch(nums: number[], target: number): number {
  let left: number = 0;
  let right: number = nums.length - 1;

  while (left <= right) {
    const mid: number = Math.floor((left + right) / 2);

    if (nums[mid] === target) return mid;
    if (target < nums[mid]) right = mid - 1;
    else left = mid + 1;