Fully Worked Problem: High Scores and Counting Threshold

[PatrickFrankAIU]

This is a "fully worked" problem, meaning both the instructions and the solution are provided. This problem was fully worked during class session "Module 2 Instructor Live 3", on August 19th, and that recording is available in the classroom announcements. A good idea here is to try to work the problem again later on your own, without looking at the solution. I've also attached at the end of this Issue some suggested upgrades that you can try, all of which are completable with your current level of knowledge.

Instructions: Imagine you have an array of numbers representing scores from a game. You want to count how many scores are above a certain threshold. For those special high scores, you also want to keep a separate count, all the while using a while loop for iteration.

let scores = [15, 22, 18, 34, 45, 5, 10, 25]; // Example scores in an array
let highScoreThreshold = 20; // Scores above this value are considered high
let totalScoresCount = 0; // Counter for all scores processed
let highScoresCount = 0; // Counter for high scores

Tips:

• You will also want a variable to act as the loop counter, but no other variables should be needed
• Remember that other variables besides the loop counter can be incremented with ++
• You will need an IF statement within the WHILE loop to handle the decision of whether the number is a "high score"

=================

Solution:

let scores = [15, 22, 18, 34, 45, 5, 10, 25]; // Example scores
let highScoreThreshold = 20; // Scores above this value are considered high
let totalScoresCount = 0; // Counter for all scores processed
let highScoresCount = 0; // Counter for high scores

let i = 0; // Initialize loop counter

while (i < scores.length) {
    let score = scores[i];

    // Count all scores
    totalScoresCount++;

    // Increment highScoresCount if the score is above the threshold
    if (score > highScoreThreshold) {
        highScoresCount++;
    }

    i++; // Increment the loop counter
}

console.log("Total scores processed: " + totalScoresCount);
console.log("Number of high scores: " + highScoresCount);

Additional Practice Suggestions:

• Try using a FOR loop instead of a WHILE loop
• Possible additional features you could add:
  • Calculate the average score
  • Calculate the average of just the "high scores"
  • Identify the highest score
  • Count the scores below the threshold
  • List the "high scores"