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No:10845

191

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mental arithmetic game
Developer User3346｜Date and time 23/8/4 13:54:16
Build time 16.236 sec｜Game capacity 2.328KB｜

Script

暗算ゲーム

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Click here for free DL of the app version that can save data.

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>暗算ゲーム</title>
    <style>
        body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            height: 100vh;
            font-size: 2rem;
        }

button {
            font-size: 2rem;
            padding: 0.5rem 1rem;
            margin-top: 1rem;
        }
    </style>
</head>
<body>
    <h1>暗算ゲーム</h1>
    <div id="problem"></div>
    <input type="number" id="answer" placeholder="答えを入力してください">
    <button onclick="checkAnswer()">回答する</button>
    <div id="result"></div>

function generateProblem() {
            const num1 = Math.floor(Math.random() * 10) + 1;
            const num2 = Math.floor(Math.random() * 10) + 1;
            const operator = ['+', '-', '×', '÷'][Math.floor(Math.random() * 4)];

problemElement.textContent = `${num1} ${operator} ${num2}`;
        }

function checkAnswer() {
            const [num1, operator, num2] = problemElement.textContent.split(' ');
            let correctAnswer;

switch (operator) {
                case '+':
                    correctAnswer = parseInt(num1) + parseInt(num2);
                    break;
                case '-':
                    correctAnswer = parseInt(num1) - parseInt(num2);
                    break;
                case '×':
                    correctAnswer = parseInt(num1) * parseInt(num2);
                    break;
                case '÷':
                    correctAnswer = parseInt(num1) / parseInt(num2);
                    break;
            }

const userAnswer = parseInt(answerElement.value);

if (userAnswer === correctAnswer) {
                resultElement.textContent = "正解！🎉";
            } else {
                resultElement.textContent = "不正解！😢";
            }

generateProblem();
            answerElement.value = '';
        }

generateProblem();
    </script>
</body>
</html>