Does anyone have 2.19.4 “Guess a Number 2.0” code for CodeHS

Does anyone have 2.19.4 “Guess a Number 2.0” code for CodeHS?

The correct answer and explanation is:

Sure! Here’s the correct solution for CodeHS 2.19.4 “Guess a Number 2.0”, which is typically part of the JavaScript (or Python) introductory course. This problem improves upon a basic guessing game by allowing multiple guesses and giving feedback if the guess is too high or too low.

✅ Correct JavaScript Code:

var start = 1;
var end = 100;
var number = Randomizer.nextInt(start, end);
var guess = readInt("Guess a number between " + start + " and " + end + ": ");

while (guess !== number) {
    if (guess < number) {
        println("Too low.");
    } else {
        println("Too high.");
    }
    guess = readInt("Guess again: ");
}

println("You guessed it!");

🧠 Explanation (approx. 300 words):

This program is a number guessing game that uses a while loop to allow the user to continue guessing until they get the correct number. Let’s break it down step by step:

1. Random Number Generation:
   Randomizer.nextInt(start, end) picks a random number between 1 and 100. This is the number the user has to guess.
2. User Input:
   The first prompt asks the user to guess a number. The input is stored in the guess variable.
3. Looping Until Correct:
   The while loop continues to run as long as the guess does not equal the randomly generated number. This allows for multiple guesses.
4. Conditional Feedback:
   Inside the loop, there’s an if...else block that checks if the guess is too low or too high:
   • If the guess is less than the number, it prints “Too low.”
   • If the guess is greater than the number, it prints “Too high.”
5. Prompting Again:
   After each incorrect guess, the program prompts the user again for another number, updating the guess variable.
6. Correct Guess:
   Once the guess matches the number, the loop ends and println("You guessed it!") is executed, congratulating the player.

This code teaches key programming concepts: user input, random numbers, loops, and conditionals — all foundational for building interactive programs.