dont starve together totem code example

Example 1: dont starve together

const pets = [  { type: 'Dog', name: 'Max'},  { type: 'Cat', name: 'Karl'},  { type: 'Dog', name: 'Tommy'},]pet = pets.find(pet => pet.type ==='Dog' && pet.name === 'Tommy');console.log(pet); // { type: 'Dog', name: 'Tommy' }

Example 2: dont starve together

mustHaveCheck = () => {  throw new Error(‘Missing parameter!’);}methodShoudHaveParam = (param = mustHaveCheck()) => {  return param;}