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JavaScript

Zachary grace
Zachary grace
6,682 Points
Posted by Zachary grace
Zachary grace
6,682 Points

Guessing game with Javascript

How would I make a game where you guess a number. And each number guessed is added to the previous guess? So if you guess 1 it says "you guessed: 1" and then of you guess 7 it says "you guessed: 2 8". Anyone have an idea?

2 Answers

Erik McClintock
Erik McClintock
45,783 Points
Erik McClintock
Erik McClintock
45,783 Points

Zachary,

This can be done in a few different ways, and all relatively simply! To get you started, let's break it down into the things that (off the bat) we know you'll need to build this out:

1) You'll need some form of accepting user input - this could be via an input element in your HTML, or perhaps via a JavaScript prompt

2) You'll need a couple of variables to store your data - one to hold onto the user's current guess, and one to keep track of the total of all the guesses

3) You'll need a way to display the results back to the user - this could be done via setting the innerHTML or innerText of an HTML element on the screen, or perhaps with a JavaScript alert or prompt

Hopefully this will help you get started! All you'll need to do from there is put your Treehouse training to use to piece the logic together.

Let me know if you need further assistance, and happy coding!

Erik

Erik McClintock
Erik McClintock
45,783 Points
Erik McClintock
Erik McClintock
45,783 Points

Now, keep in mind, of course, that if you want it to truly be a guessing game, you'll need some hidden number for the player to be trying to guess! Thus:

1) You'll need another variable to hold the hidden number

2) You'll need a way to generate a new hidden number after each time the player successfully guesses it - you can do this simply with JavaScript's random function on the Math object (Math.random() - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random)

Additionally...

3) You'll probably want to provide a different message to the player based on whether or not they guessed your hidden number correctly, so you'll want to write in some logic to check that condition and display the win or lose messages accordingly.

4) You would also then want to create a function that would be called if the player guessed correctly whose use would be to restart the game (generate a new hidden number and clear out the currentGuess and totalGuess variables that you had been storing to throughout the game play).

Hope this makes sense!

Erik

Erik McClintock
Erik McClintock
45,783 Points
Erik McClintock
Erik McClintock
45,783 Points

Zachary,

It looks and plays greatly! Very nicely done.

Now that you have the base game in place, are you considering expanding it at all? You could try:

1) Adding a set number of times a player is allowed to guess 2) Recording how many wins and how many losses a player has logged 3) Adding an event handler on the window to allow for guess submissions via a keydown of the Enter key

Looking forward to seeing what (if anything) you add, but it is great in its current state, too!

Erik