HumanComputerInterface/number-inputs.html at main · ubylabs/HumanComputerInterface · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Number Input Validation</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Arial', sans-serif;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 20px;
            background-color: #f5f5f5;
            color: #333;
        }

        .container {
            max-width: 800px;
            width: 100%;
            padding: 30px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        h1 {
            margin-bottom: 20px;
            font-size: 2.5rem;
            text-align: center;
        }

        p {
            margin-bottom: 15px;
            font-size: 1.1rem;
            line-height: 1.6;
        }

        .input-group {
            margin-bottom: 30px;
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 8px;
            background-color: #f9f9f9;
        }

        .input-group h2 {
            margin-bottom: 15px;
            font-size: 1.5rem;
            color: #2c3e50;
        }

        .input-group p {
            margin-bottom: 15px;
            color: #555;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: bold;
        }

        input {
            width: 100%;
            padding: 12px;
            font-size: 1rem;
            border: 2px solid #ddd;
            border-radius: 5px;
            margin-bottom: 10px;
        }

        input:focus {
            outline: none;
            border-color: #3498db;
            box-shadow: 0 0 5px rgba(52, 152, 219, 0.5);
        }

        .input-status {
            font-size: 0.9rem;
            margin-top: 5px;
            min-height: 20px;
        }

        .valid {
            color: #27ae60;
        }

        .invalid {
            color: #e74c3c;
        }

        .nav-link {
            display: inline-block;
            margin-top: 20px;
            padding: 10px 20px;
            background-color: #333;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            text-align: center;
        }

        .nav-link:hover {
            background-color: #555;
        }

        .links-container {
            text-align: center;
            margin-top: 20px;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>Number Input Validation</h1>
        <p>This page demonstrates two different approaches to validating number inputs.</p>

        <div class="input-group">
            <h2>Input 1: Clear All on Invalid Input</h2>
            <p>This input will clear all characters if any non-numeric character is entered.</p>
            <label for="input1">Enter numbers only:</label>
            <input type="text" id="input1" placeholder="Enter numbers only">
            <div id="status1" class="input-status"></div>
        </div>

        <div class="input-group">
            <h2>Input 2: Clear Only Invalid Characters</h2>
            <p>This input will only remove non-numeric characters, keeping the valid numbers.</p>
            <label for="input2">Enter numbers only:</label>
            <input type="text" id="input2" placeholder="Enter numbers only">
            <div id="status2" class="input-status"></div>
        </div>

        <div class="links-container">
            <a href="/" class="nav-link">Go to Home</a>
        </div>
    </div>

    <script>
        document.addEventListener('DOMContentLoaded', function() {
            // Input 1: Clear all characters if any invalid character is entered
            const input1 = document.getElementById('input1');
            const status1 = document.getElementById('status1');

            input1.addEventListener('input', function() {
                const value = this.value;

                // Check if the input contains only numbers
                if (/^\d*$/.test(value)) {
                    status1.textContent = value ? 'Valid input!' : '';
                    status1.className = 'input-status valid';
                } else {
                    // If invalid character detected, clear the entire input
                    this.value = '';
                    status1.textContent = 'Invalid character detected! Input cleared.';
                    status1.className = 'input-status invalid';
                }
            });

            // Input 2: Clear only invalid characters, keeping valid numbers
            const input2 = document.getElementById('input2');
            const status2 = document.getElementById('status2');

            input2.addEventListener('input', function(e) {
                const value = this.value;
                const originalLength = value.length;

                // Remove all non-numeric characters
                const cleanedValue = value.replace(/\D/g, '');

                // If there were non-numeric characters, update the input
                if (cleanedValue !== value) {
                    this.value = cleanedValue;
                    status2.textContent = 'Invalid characters removed!';
                    status2.className = 'input-status invalid';

                } else {
                    status2.textContent = value ? 'Valid input!' : '';
                    status2.className = 'input-status valid';
                }
            });
        });
    </script>
</body>
</html>