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Math Game using HTML, CSS & JavaScript
Introduction
Hello, today we’re going to learn how to use HTML, CSS & JavaScript to create a Math Game. By following these instructions, you can simply make this Math Game in HTML, CSS & JavaScript. Simply by adhering to the procedures mentioned below, you will be able to develop this amazing Math Game.
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Project Description
Step 1
The HTML (Hypertext Markup Language) will help us to create the structure for the list with some necessary attributes and elements to make Math Game Project.
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Step 2
Then we will use CSS (Cascading Stylesheet) which will help us to style or design the project with suitable padding and alignment in the Math Game Project.
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Step 3
At last we will use JS (JavaScript) which will add a logic to make the Math Game Project functioning from the user end.
I hope you have got an idea about the project.
HTML Code for Math Game
<html lang="en">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Math Game</title>
<!-- Google Font -->
<link
href="https://fonts.googleapis.com/css2?family=Poppins:wght@500;600&display=swap"
rel="stylesheet"
/>
<!-- Stylesheet -->
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div class="container">
<h3>Fill In The Blank With Correct Number Or Operator</h3>
<div id="question"></div>
<button id="submit-btn">Submit</button>
<p id="error-msg">Some Demo Error Message</p>
</div>
<div class="controls-container">
<p id="result"></p>
<button id="start-btn">Start Game</button>
</div>
<!-- Script -->
<script src="script.js"></script>
</body>
</html>
First we’ll start with creating the structure of the Math Game project for that as you can see the above code we have used all the necessary elements & attributes to setup the structure. Let us know code the CSS part to add styling and aligned the tags.
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CSS Code for Math Game
Portfolio Website using HTML and CSS (Source Code)
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: "Poppins", sans-serif;
}
body {
background-color: #f4c531;
}
.container {
background-color: #ffffff;
width: 90%;
max-width: 31.25em;
position: absolute;
transform: translate(-50%, -50%);
top: 50%;
left: 50%;
padding: 5em 3em;
border-radius: 0.5em;
}
.container h3 {
font-size: 1.2em;
color: #23234c;
text-align: center;
font-weight: 500;
line-height: 1.8em;
}
.container #submit-btn {
font-size: 1.2em;
font-weight: 500;
display: block;
margin: 0 auto;
background-color: #f4c531;
border-radius: 0.3em;
border: none;
outline: none;
cursor: pointer;
color: #23234c;
padding: 0.6em 2em;
}
#error-msg {
text-align: center;
margin-top: 1em;
background-color: #ffdde0;
color: #d62f2f;
padding: 0.2em 0;
}
.container #question {
background-color: #eeedf1;
font-size: 2em;
font-weight: 600;
color: #23234c;
text-align: center;
display: flex;
align-items: center;
justify-content: center;
margin: 1.4em 0 1em 0;
padding: 1em 0;
}
.container input {
font-size: 1em;
font-weight: 600;
width: 2.35em;
color: #23234c;
text-align: center;
padding: 0 0.2em;
border: none;
background-color: transparent;
border-bottom: 0.12em solid #23234c;
margin: 0 0.25em;
}
.container input:focus {
border-color: #f4c531;
outline: none;
}
/*Hide Number Arrows*/
.container input[type="number"] {
-moz-appearance: textfield;
}
.container input[type="number"]::-webkit-outer-spin-button,
.container input[type="number"]::-webkit-inner-spin-button {
-webkit-appearance: none;
margin: 0;
}
.controls-container {
position: absolute;
display: flex;
align-items: center;
justify-content: center;
flex-direction: column;
background-color: #f4c531;
height: 100%;
width: 100%;
top: 0;
}
#start-btn {
font-size: 1.2em;
font-weight: 500;
background-color: #ffffff;
color: #23234c;
border: none;
outline: none;
cursor: pointer;
padding: 0.8em 1.8em;
border-radius: 0.3em;
}
#result {
margin-bottom: 1em;
font-size: 1.5em;
color: #23234c;
}
#result span {
font-weight: 600;
}
.hide {
display: none;
}
Second comes the CSS code, which is mentioned above in that we have styled for the structure we have padded as well as aligned the Math Game project so that it is properly situated and doesn’t get messy with suitable CSS elements. Now we have created the structure using HTML and styled the webpage using CSS its time to add the functionality using JavaScript in this project.
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JavaScript Code for Math Game
let operators = ["+", "-", "*"];
const startBtn = document.getElementById("start-btn");
const question = document.getElementById("question");
const controls = document.querySelector(".controls-container");
const result = document.getElementById("result");
const submitBtn = document.getElementById("submit-btn");
const errorMessage = document.getElementById("error-msg");
let answerValue;
let operatorQuestion;
//Random Value Generator
const randomValue = (min, max) => Math.floor(Math.random() * (max - min)) + min;
const questionGenerator = () => {
//Two random values between 1 and 20
let [num1, num2] = [randomValue(1, 20), randomValue(1, 20)];
//For getting random operator
let randomOperator = operators[Math.floor(Math.random() * operators.length)];
if (randomOperator == "-" && num2 > num1) {
[num1, num2] = [num2, num1];
}
//Solve equation
let solution = eval(`${num1}${randomOperator}${num2}`);
//For placing the input at random position
//(1 for num1, 2 for num2, 3 for operator, anything else(4) for solution)
let randomVar = randomValue(1, 5);
if (randomVar == 1) {
answerValue = num1;
question.innerHTML = `<input type="number" id="inputValue" placeholder="?"\> ${randomOperator} ${num2} = ${solution}`;
} else if (randomVar == 2) {
answerValue = num2;
question.innerHTML = `${num1} ${randomOperator}<input type="number" id="inputValue" placeholder="?"\> = ${solution}`;
} else if (randomVar == 3) {
answerValue = randomOperator;
operatorQuestion = true;
question.innerHTML = `${num1} <input type="text" id="inputValue" placeholder="?"\> ${num2} = ${solution}`;
} else {
answerValue = solution;
question.innerHTML = `${num1} ${randomOperator} ${num2} = <input type="number" id="inputValue" placeholder="?"\>`;
}
//User Input Check
submitBtn.addEventListener("click", () => {
errorMessage.classList.add("hide");
let userInput = document.getElementById("inputValue").value;
//If user input is not empty
if (userInput) {
//If the user guessed correct answer
if (userInput == answerValue) {
stopGame(`Yippie!! <span>Correct</span> Answer`);
}
//If user inputs operator other than +,-,*
else if (operatorQuestion && !operators.includes(userInput)) {
errorMessage.classList.remove("hide");
errorMessage.innerHTML = "Please enter a valid operator";
}
//If user guessed wrong answer
else {
stopGame(`Opps!! <span>Wrong</span> Answer`);
}
}
//If user input is empty
else {
errorMessage.classList.remove("hide");
errorMessage.innerHTML = "Input Cannot Be Empty";
}
});
};
//Start Game
startBtn.addEventListener("click", () => {
operatorQuestion = false;
answerValue = "";
errorMessage.innerHTML = "";
errorMessage.classList.add("hide");
//Controls and buttons visibility
controls.classList.add("hide");
startBtn.classList.add("hide");
questionGenerator();
});
//Stop Game
const stopGame = (resultText) => {
result.innerHTML = resultText;
startBtn.innerText = "Restart";
controls.classList.remove("hide");
startBtn.classList.remove("hide");
};
Last stage of the project the JavaScript in which we have added the logical and coded as per the requirement with some conditions. We have added the Question Generator in the constant section which will constantly generate the questions as per the user action. Let us see the Final Output of the project Math Game using HTML, CSS & JavaScript (Source Code).
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Output
Live Preview of Math Game using HTML, CSS & JavaScript (Source Code)
See the Pen
Math Game by Harsh Sawant (@harshh9)
on CodePen.
We have Successfully created our Math Game using HTML, CSS & JavaScript (Source Code). You can use this project for your personal needs and the respective lines of code are given with the code pen link mentioned above.
If you find out this Blog helpful, then make sure to search code with random on google for Front End Projects with Source codes and make sure to Follow the Code with Random Instagram page.
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Code Idea – codingartist
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Written By – Harsh Sawant
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Code By – @harshh9
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