Code Challenge: Pets

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Solving the "Pets" code challenge demonstrates a students' understanding of **boolean expressions**, **logical operators**, and **if-statements**.

Requirements

When running the program, it should do the following:

• After entering “dog” or “cat”, it should say the correct sound for that animal
• If you enter an age of 1 or 0, it should say “Just a pup” or “Just a kitten”, depending on the animal
• If you enter an age between 2 or 7 (including those numbers), it should say, “Your pet is still young”
• If you enter an age of 8, it should say “Your pet is elderly.”

The student should test their program several times, for example:

• enter "dog", then "1"
• enter "cat", then "1"
• enter "dog", then "4"
• enter "cat", then "7"

Solution

1. Fix the conditional in the first if-statement on line 7. It should say if (animal === "dog") .
2. Fix the conditional in the second if-statement on line 11. It should say if (animal === "cat") .
3. Fix the conditional in the 3rd if-statement on line 17. It should say if (age < 2 && animal === "dog") .
4. Change the logical operator on the 4th if-statement on line 21 to && .
5. Fix the conditional in the 5th if-statement to check if age is greater than 2 and less than 8. It should say if (age > 2 && age < 8) .

Example Solution

let animal = prompt("Enter your favorite pet (dog or cat)");

if (animal === "dog") {
  alert("Arf!");
}

if (animal === "cat") {
  alert("Meow!");
}

let age = Number(prompt("Enter the age of your pet:"));

if (age < 2 && animal === "dog") {
  alert("Just a pup!");
}

if (age < 2 && animal === "cat") {
  alert("Just a kitten!");
}

if (age > 2 && age < 8) {
  alert("Your pet is still young.");
}

if (age >= 8) {
  alert("Your pet is elderly.");
}