Loopcode/html-forms.html at main · Dharmandra-singh/Loopcode · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-D0ENCWPZL9"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'G-D0ENCWPZL9');
</script>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>9. HTML Forms - Full Guide</title>
  <style>
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: 'Segoe UI', sans-serif;
      background: #1cc9be;
      padding: 30px;
    }
    .container {
      background: rgba(255,255,255,0.3);
      padding: 25px;
      border-radius: 15px;
      max-width: 1000px;
      margin: auto;
      box-shadow: 0 8px 20px rgba(0,0,0,0.2);
    }
    h2, h3 {
      color: #180;
      margin-bottom: 15px;
    }
    p {
      font-size: 17px;
      margin-bottom: 12px;
      line-height: 1.5;
    }
    ul {
      margin: 10px 0 20px 20px;
    }
    textarea, iframe {
      width: 100%;
      height: 200px;
      font-size: 16px;
      padding: 10px;
      margin: 10px 0 20px;
      border-radius: 10px;
      border: 2px solid white;
      background: rgba(255,248,240,0.4);
      font-family: monospace;
    }
    iframe {
      margin-top: 10px;
    }
    button {
      background: #007bff;
      color: white;
      border: none;
      padding: 10px 20px;
      font-size: 15px;
      font-weight: 500;
      border-radius: 8px;
      cursor: pointer;
      margin-bottom: 25px;
      transition: all 0.3s ease-in-out;
      position: relative;
      overflow: hidden;
    }
    button:hover {
      box-shadow: 0 5px 12px rgba(0,0,0,0.2);
      transform: translateY(-2px);
    }
  </style>
</head>
<body>
  <div class="container">
    <h2>9. HTML Forms - Full Guide</h2>

    <!-- Form Structure -->
    <h3>I. Form Structure</h3>
    <p><strong>&lt;form&gt;</strong> tag HTML mein ek form banane ke liye use hoti hai. Form ke andar <code>input</code>, <code>label</code>, <code>button</code> jaise elements hote hain jo user se data collect karte hain.</p>
    <ul>
      <li><strong>action:</strong> Ye batata hai ki form data kis page ya URL par bhejna hai.</li>
      <li><strong>method:</strong> Ye define karta hai data bhejne ka method - GET ya POST.</li>
      <li><strong>label:</strong> User ko input ka naam dikhata hai, aur accessibility ke liye important hota hai.</li>
    </ul>

    <textarea id="code1">
<form action="/submit" method="post">
  <label for="username">Your Name:</label>
  <input type="text" id="username" name="username"><br><br>

  <label for="email">Your Email:</label>
  <input type="email" id="email" name="email"><br><br>

  <input type="submit" value="Send">
</form>
    </textarea>
    <button onclick="runCode('code1', 'output1')">Run Code</button>
    <iframe id="output1"></iframe>

    <!-- Input Types -->
    <h3>II. Input Field Types</h3>
    <p>Input tag ke <strong>type</strong> attribute se hum batate hain kis tarah ka data input hoga:</p>
    <ul>
      <li><strong>text:</strong> Normal text</li>
      <li><strong>email:</strong> Email input with validation</li>
      <li><strong>password:</strong> Hidden input (for passwords)</li>
      <li><strong>radio:</strong> Ek hi option select karne ke liye</li>
      <li><strong>checkbox:</strong> Multiple options select karne ke liye</li>
      <li><strong>date:</strong> Date picker</li>
      <li><strong>file:</strong> File upload karne ke liye</li>
    </ul>

    <textarea id="code2">
<form>
  Name: <input type="text" name="name"><br><br>
  Email: <input type="email" name="email"><br><br>
  Password: <input type="password" name="pwd"><br><br>

  Gender:
  <input type="radio" name="gender" value="male"> Male
  <input type="radio" name="gender" value="female"> Female<br><br>

  Skills:
  <input type="checkbox" name="skill" value="html"> HTML
  <input type="checkbox" name="skill" value="css"> CSS<br><br>

  DOB: <input type="date" name="dob"><br><br>
  Upload Resume: <input type="file" name="resume"><br><br>

  <input type="submit" value="Register">
</form>
    </textarea>
    <button onclick="runCode('code2', 'output2')">Run Code</button>
    <iframe id="output2"></iframe>

    <!-- Validation -->
    <h3>III. Validation Basics</h3>
    <p>Form mein validation ke liye HTML attributes ka use hota hai jaise:</p>
    <ul>
      <li><strong>required:</strong> Field empty nahi chhoda ja sakta.</li>
      <li><strong>min, max:</strong> Numbers ke liye limit set karta hai.</li>
      <li><strong>pattern:</strong> Regular Expression ke through matching.</li>
    </ul>

    <textarea id="code3">
<form>
  Email: <input type="email" name="email" required><br><br>
  Age: <input type="number" name="age" min="18" max="60" required><br><br>
  Password: <input type="password" name="pwd" pattern=".{6,}" title="Minimum 6 characters required"><br><br>
  <input type="submit" value="Validate">
</form>
    </textarea>
    <button onclick="runCode('code3', 'output3')">Run Code</button>
    <iframe id="output3"></iframe>

  </div>

  <script>
    function runCode(textareaId, iframeId) {
      const code = document.getElementById(textareaId).value;
      const iframe = document.getElementById(iframeId);
      const doc = iframe.contentDocument || iframe.contentWindow.document;
      doc.open();
      doc.write(code);
      doc.close();
    }
  </script>
</body>
</html>