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Create Number Guessing Game using JavaScript

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Create Number Guessing Game using JavaScript

Welcome to The codewithrandom blog. In this article, we create a Number Guessing Game using javascript. For the Number Guessing Game project, we will use Html, Css, and basic Vanilla Javascript. So a basic understanding of these technologies is all you need to get started.

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Number Guessing Game using JavaScript

A user is required to estimate a number between 0 and 100 in a maximum of 10 attempts in a number-guessing game. If after ten tries the player cannot correctly predict the number, the game is over and he is eliminated.

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Code by N/A
Project Download Link Available Below
Language used HTML, CSS, and JavaScript
External link / Dependencies NO
Responsive YES
Number Guessing Game Table

Html Code For Number Guessing Game

Write the html boilerplate and link it with the external Css file and Javascript File. For this project, we are using google font “Poppins” and thus add a link tag for the google fonts inside the <head> element.

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<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8" />
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <title>Document</title>
        <link rel="stylesheet" href="style.css" />
        <link rel="preconnect" href="https://fonts.gstatic.com" />
        <link
            href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap"
            rel="stylesheet"
        />
    </head>
    <body>
        <div class="container">
            <h3>I am Thinking of a number Between 1-100.</h3>
            <h3>Can you Guess it</h3>
            <input type="text" placeholder="Num" id="guess" /><br />
            <button onclick="play()" id="my_btn">GUESS</button>
            <p id="message1">No. of Guesss : 0</p>
            <p id="message2">Guessed number are : none</p>
            <p id="message3"></p>
        </div>
        <script src="app.js"></script>
    </body>
</html>
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The project’s structure will be included first, but first we must include certain information inside the link, such as the fact that we utilised a CSS file, which we must connect inside our HTML code.We have also added different google fonts link inside our number guess game.
<link rel="stylesheet" href="style.css" /> 
<link rel="preconnect" href="https://fonts.gstatic.com" /> 
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap" rel="stylesheet" />

Adding the Structure for our number guessing game:

  • Create the following div container and add the code inside the body tag for the number guessing game.
  • Now inside the container, using the h3> tag, we will add a heading to the number guessing game.
  • We use the input tag selector to add the field for the user to enter the number that comes to mind.
  • We will now create a button when you click “play,” and we will create a “guess” button for the number guessing app.
  • Then, in the end, using the paragraph tag, we will display the number of guesses and the guessed number.
<div class="container">  
     <h3>I am Thinking of a number Between 1-100.</h3>  
     <h3>Can you Guess it </h3>  
       <input type="text" placeholder="Num" id="guess"><br>  
       <button onclick="play()" id="my_btn">GUESS</button>  
       <p id="message1">No. of Guesss : 0</p>  
       <p id="message2">Guessed number are : none</p>  
       <p id="message3"></p>  
   </div>

This HTML code provides the basic structure for the number guessing game.

 
number guessing game javascript
number guessing game Html Preview

CSS Code For Number Guessing Game

Next, we will style our project and make it presentable using CSS. Style the background and root element to make the default padding and margin to be zero, and the box governed by the border box. Center the container element in the webpage.

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* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body {
    height: 100vh;
    background: linear-gradient(to right, #7f53ac, #657ced);
}
.container {
    position: absolute;
    width: 50%;
    min-width: 580px;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    background: #fff;
    padding: 50px 10px;
    border-radius: 5px;
    display: grid;
    justify-items: center;
    font-family: "poppins", sans-serif;
}

In order to improve the user interface, we will then style the element inside the container. The font-size and font-weight will be changed to “30px” and “600,” respectively, using the tag selector (h3).

We’ll provide “160px” for the width and “15px” for the padding using the button tag selector. We will centre the text using the text-align property, and we will use the margin-top property to establish a top margin of 30px.

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h3 {
    font-size: 30px;
    font-weight: 600;
}
input[type="text"] {
    width: 90px;
    font-weight: 600;
    padding: 20px 0;
    font-size: 28px;
    text-align: center;
    margin-top: 30px;
    border-radius: 5px;
    border: 2px solid #202020;
    color: #663399;
}
button {
    width: 160px;
    padding: 15px 0;
    border-radius: 5px;
    background-color: #663399;
    color: #fff;
    border: none;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 30px;
}
p {
    font-weight: 400;
}

Here is our updated output after css for the number guessing game.

Html Css number guessing game Output

 
number guessing game javascript
number guessing game Css Preview

Next, we are adding functionality to our number guessing game Through Javascript.

Javascript Code Number Guessing Game
var msg1 = document.getElementById("message1") var msg2 = document.getElementById("message2") var msg3 = document.getElementById("message3") var answer = Math.floor(Math.random() * 100) + 1;
var no_of_guesses = 0;
var guesses_num = [];

function play() {
    var user_guess = document.getElementById("guess").value;
    if (user_guess < 1 || user_guess > 100) {
        alert("Please Enter a number Between 1 to 100");
    } else {
        guesses_num.push(user_guess);
        no_of_guesses += 1;
        if (user_guess < answer) {
            msg1.textContent = "Your Guess is Too low"
            msg2.textContent = "No. Of Guesses : " + no_of_guesses;
            msg3.textContent = "Guessed Number Are: " + guesses_num;
        } else if (user_guess > answer) {
            msg1.textContent = "Your Guess is Too High"
            msg2.textContent = "No. Of Guesses : " + no_of_guesses;
            msg3.textContent = "Guessed Number Are: " + guesses_num;
        } else if (user_guess == answer) {
            msg1.textContent = "Yahhhh You won It!!"
            msg2.textContent = "the Number was " + answer msg3.textContent = " You guessd it in " + no_of_guesses + "Guesses";
        }
    }
}

This variable’s value is predetermined to be a random number between 1 and 100. A function named play is declared in the following line (). This feature will be applied to the actual game. The text box with the id “guess” is where the user’s initial guess is obtained.

The user is alerted and asked to submit a number between 1 and 100 if their prediction is less than 1 or greater than 100.

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If not, it increments the array’s index and adds their guess to the “guesses num” array in order to keep track of how many guesses have been made so far.

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If they were unlucky enough to guess correctly, the message that they got it right is displayed on msg3, along with how many guesses were made before guessing correctly and what was guessed in total numbers. If they guessed too low (less than the answer), the message that they got it wrong is displayed on msg1; if they guessed too high (more than the answer), the message that they got it right is displayed on msg2.

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Now we have completed our javascript section for the number guessing game.  Here is our updated output with html, css, and javascript for the number guessing game.

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You can see the output video and project screenshots of the number guessing game.

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number guessing game javascript
number guessing game javascript

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number guessing game javascript
number guessing game javascript

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Final Output:

Conclusion

Hope you like the Number Guessing Game Using Javascript.In this post, we learned how to create a number guessing game using simple HTML & CSS, and javascript. If we made a mistake or for any confusion, please drop a comment to help our readers and make the process easy for all of us.

See our other blogs and gain knowledge in front-end development. Thank you

Written by – Code With Random/Anki

Which code editor do you use for this Number Guessing Game coding?

I personally recommend using VS Code Studio, it’s straightforward and easy to use.

is this project responsive or not?

Yes! this project is a responsive project.

Do you use any external links to create this project?

No!

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