Machine Coding Question

Create a simple landing page with navbar and hero section using HTML and CSS

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <style>
    body {
      margin: 0;
      padding: 0;
      font-family: 'Arial', sans-serif;
    }

    nav {
      background-color: #333;
      padding: 10px;
      text-align: center;
    }

    nav a {
      color: white;
      text-decoration: none;
      margin: 0 15px;
      font-size: 18px;
    }

    .hero-section {
      background: url('hero-image.jpg') center/cover no-repeat;
      color: white;
      text-align: center;
      padding: 100px 20px;
    }

    .hero-section h1 {
      font-size: 3em;
      margin-bottom: 20px;
    }

    .hero-section p {
      font-size: 1.2em;
      margin-bottom: 40px;
    }

    .cta-button {
      background-color: #4CAF50;
      color: white;
      padding: 15px 30px;
      font-size: 1.2em;
      text-decoration: none;
      border-radius: 5px;
      transition: background-color 0.3s ease;
    }

    .cta-button:hover {
      background-color: #45a049;
    }
  </style>
  <title>Simple Landing Page</title>
</head>
<body>

  <nav>
    <a href="#">Home</a>
    <a href="#">About</a>
    <a href="#">Contact</a>
  </nav>

  <div class="hero-section">
    <h1>Welcome to Our Website</h1>
    <p>Discover a world of possibilities with our amazing services.</p>
    <a href="#" class="cta-button">Get Started</a>
  </div>

</body>
</html>

Create a box-shadow with a 5px horizontal and 10px vertical offset. Use a 10px spread and no blur (don't set a color) - HTML and CSS

 <!DOCTYPE html>
 <html lang="en">
 <head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <style>
     .box-with-shadow {
       width: 200px;
       height: 200px;
       background-color: #3498db;
       box-shadow: 5px 10px 10px 0px; /* 5px horizontal, 10px vertical, 10px spread, no blur */
       margin: 50px;
     }
   </style>
   <title>Box Shadow Example</title>
 </head>
 <body>

   <div class="box-with-shadow"></div>

 </body>
 </html>

Create a counter application with increment and decrement buttons using JavaScript.

 <!DOCTYPE html>
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <style>
       body {
         font-family: "Arial", sans-serif;
         text-align: center;
         margin: 50px;
       }

       #counter {
         font-size: 2em;
         margin-bottom: 20px;
       }

       button {
         font-size: 1em;
         padding: 10px 20px;
         margin: 0 10px;
         cursor: pointer;
       }
     </style>
     <title>Counter App</title>
   </head>
   <body>
     <h1>Counter App</h1>

     <div id="counter">0</div>
     <button onclick="increment()">Increment</button>
     <button onclick="decrement()">Decrement</button>

     <script>
       let count = 0;

       function updateCounter() {
         document.getElementById("counter").textContent = count;
       }

       function increment() {
         count++;
         updateCounter();
       }

       function decrement() {
         if (count > 0) {
           count--;
           updateCounter();
         }
       }
     </script>
   </body>
 </html>

Given an array of quotes, generate random quotes and display them using JavaScript.

 <!DOCTYPE html>
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <style>
       body {
         font-family: "Arial", sans-serif;
         text-align: center;
         margin: 50px;
       }

       #quoteDisplay {
         font-size: 1.5em;
         margin-bottom: 20px;
       }

       button {
         font-size: 1em;
         padding: 10px 20px;
         cursor: pointer;
       }
     </style>
     <title>Random Quote Generator</title>
   </head>
   <body>
     <h1>Random Quote Generator</h1>

     <div id="quoteDisplay"></div>
     <button onclick="generateRandomQuote()">Generate Random Quote</button>

     <script>
       const quotes = [
         "The only way to do great work is to love what you do. - Steve Jobs",
         "Innovation distinguishes between a leader and a follower. - Steve Jobs",
         "Life is what happens when you're busy making other plans. - John Lennon",
         "The future belongs to those who believe in the beauty of their dreams. - Eleanor Roosevelt",
         "Success is not final, failure is not fatal: It is the courage to continue that counts. - Winston Churchill",
       ];

       function generateRandomQuote() {
         const randomIndex = Math.floor(Math.random() * quotes.length);
         const randomQuote = quotes[randomIndex];
         document.getElementById("quoteDisplay").textContent = randomQuote;
       }
     </script>
   </body>
 </html>

Create a stopwatch application using React JS (functional components)

Initialize State: Create state variables to track the elapsed time (initially set to 0) and a boolean to control the running state of the stopwatch.

Setup Interval: Use the useEffect hook to start an interval that increments the elapsed time every 1000 milliseconds (1 second) when the stopwatch is running.

Create Start/Stop Buttons: Implement buttons to start and stop the stopwatch. Toggle the boolean state to control the running status.

Implement Reset: Add a reset button to set the elapsed time back to 0 when clicked. Ensure the stopwatch is stopped before resetting.

Display Elapsed Time: Render the elapsed time on the UI, updating it dynamically as the stopwatch runs. Format the time to minutes, seconds, and milliseconds for better readability.
Create a simple todo app with just 2 features - adding tasks, and deleting them using React JS

State Setup: Create a state variable using the useState hook to store an array of tasks. Initialize it as an empty array.

Implement Task Addition: Create an input field and a button to add tasks. Use the input value to create a new task object and update the state by adding it to the existing tasks array.

Delete Task Functionality: Implement a delete button for each task. Pass a unique identifier to each task and use it to filter out the task when the delete button is clicked, updating the state accordingly.

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Ayush Srivastava

Ayush Srivastava