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Create a Math Quiz App using HTML CSS and JavaScript | JS Quiz App | JavaScript Project

Create a Math Quiz App using HTML CSS and JavaScript. Hello, in today's tutorial video I'm going to show you how to create a math quiz app/game using HTML, CSS, and javascript.

Source code to Create a Math Quiz App using HTML CSS and JavaScript



<!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>Math Quiz</title>
    <style>
        body {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100vh;
        }
        
        .quiz {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            background-color: darkCyan;
            border-radius: 5px;
            box-shadow: 0 0 10px 0 rgba(0, 0, 0, 0.1);
            padding: 30px;
        }
        
        .quiz * {
            width: 100%;
            height: 25px;
            margin-top: 2px;
            text-align: center;
        }
        
        .reset {
            color: #fff;
            text-decoration: underline;
            cursor: pointer;
        }
        
        .score {
            color: #fff;
            font-weight: bolder;
        }
        
        h1 {
            color: #fff;
        }
        
        .result {
            color: pink;
            font-weight: bolder;
        }
        
        .next {
            display: none;
        }
    </style>
</head>

<body>
    <form class='quiz'>
        <span class='result'>Solve It</span>
        <h1>
            <span class='quest'>10+10</span>
            <span> = ?</span>
        </h1>
        <input type='number' class='ans' placeholder='0' required>
        <input type='submit' class='submit'>
        <button type='button' class='next'>Play next</button>
        <button type='button' class='score' disabled>Score</button>
        <span class='reset'>Reset score</span>
    </form>
    <script>
        let quiz = document.querySelector(".quiz");
        let result = document.querySelector(".result");
        let quest = document.querySelector(".quest");
        let ans = document.querySelector(".ans");
        let submit = document.querySelector(".submit");
        let next = document.querySelector(".next");
        let score = document.querySelector(".score");
        let reset = document.querySelector(".reset");
        let prevScore = ~~localStorage.getItem('score');
        score.textContent = `Score : ${prevScore}`;

        function gq() {
            let op = ['+', '-', '*', '/'];
            let r1 = ~~(Math.random() * 5) + 5;
            let r2 = ~~(Math.random() * 5);
            let rop = ~~(Math.random() * 4);
            quest.textContent = `${r1} ${op[rop]} ${r2}`;
        }
        gq();
        quiz.addEventListener('submit', (e) => {
            e.preventDefault();
            submit.style.display = "none";
            next.style.display = "block";
            let cans = ~~Function('return ' + quest.textContent)().toFixed();
            if (cans == ans.value) {
                result.textContent = 'Wow Score Added!';
                let scr = prevScore + 5;
                prevScore = scr;
                localStorage.setItem("score", prevScore);
                score.textContent = `Score : ${prevScore}`;
            } else {
                result.textContent = `Oops! Correct ans is ${cans}`;
            }
        })
        next.addEventListener('click', () => {
            gq();
            result.textContent = 'Solve It';
            quiz.reset();
            next.style.display = "none";
            submit.style.display = "block";
        })
        reset.addEventListener('click', () => {
            localStorage.removeItem('score');
            location.reload();
        })
    </script>
</body>

</html>

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