Chall1.js

`use strict`;
// Julia and Kate are doing a study on dogs. So each of them asked 5 dog owners
// about their dog's age, and stored the data into an array (one array for each). For
// now, they are just interested in knowing whether a dog is an adult or a puppy.
// A dog is an adult if it is at least 3 years old, and it's a puppy if it's less than 3 years
// old.
// Your tasks:
// Create a function 'checkDogs', which accepts 2 arrays of dog's ages
// ('dogsJulia' and 'dogsKate'), and does the following things:
// 1. Julia found out that the owners of the first and the last two dogs actually have
// cats, not dogs! So create a shallow copy of Julia's array, and remove the cat
// ages from that copied array (because it's a bad practice to mutate function
// parameters)
// 2. Create an array with both Julia's (corrected) and Kate's data
// 3. For each remaining dog, log to the console whether it's an adult ("Dog number 1
// is an adult, and is 5 years old") or a puppy ("Dog number 2 is still a puppy
// 🐶
// ")
// 4. Run the function for both test datasets
// Test data:
// § Data 1: Julia's data [3, 5, 2, 12, 7], Kate's data [4, 1, 15, 8, 3]
// § Data 2: Julia's data [9, 16, 6, 8, 3], Kate's data [10, 5, 6, 1, 4]


const dogsJulia = [3, 5, 2, 12, 7];

const dogsKate = [4, 1, 15, 8, 3];

function checkDogs(arr1, arr2) {
    const dogsJuliaNoCats = arr1.slice(1, -2);
    const allDogs = dogsJuliaNoCats.concat(arr2);
    allDogs.forEach((dogAge, index) => console.log(`Dog number ${index + 1} is ${dogAge > 3 ? `an adult, and is ${dogAge} years old` : `still a puppy`} `));
}

checkDogs(dogsJulia, dogsKate);
checkDogs([9, 16, 6, 8, 3], [10, 5, 6, 1, 4]);