Module 1

At a simplified level, LLMs work by:

1. Breaking text into tokens (words/parts of words)
2. Processing these tokens through transformer architecture
3. Predicting likely next tokens based on patterns in training data
4. Generating responses one token at a time

They don't "understand" meaning like humans do - they recognize statistical patterns in language that allow them to predict what would sound like a reasonable response.

The LLM landscape evolves rapidly. Some notable recent models:

• Claude 3 Opus: Anthropic's most capable model with strong reasoning
• GPT-4o: OpenAI's optimized model with faster responses
• Gemini Pro: Google's advanced multimodal model
• Llama 3: Meta's open-weights model with improved performance
• Mistral Large: Competitive model from Mistral AI with strong instruction following

Text Generation (ChatGPT):

Image Generation (DALL-E):

Code Generation (GitHub Copilot):

How generative AI is changing web development:

• Code Generation: Creating HTML, CSS, and JavaScript from descriptions
• Content Creation: Writing website copy, blog posts, and marketing materials
• Design Assets: Generating images, icons, and UI elements
• Debugging: Helping identify and fix code issues
• Optimization: Suggesting performance improvements
• Prototyping: Quickly creating mockups from text descriptions

Task: Create a form validation function

Traditional Approach:

// Manually type function line by line
function validateEmail(email) {
  const regex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  return regex.test(email);
}

function validateForm() {
  const email = document.getElementById('email').value;
  if (!validateEmail(email)) {
    alert('Please enter a valid email');
    return false;
  }
  return true;}

AI-Assisted Approach:

// Simple prompt to AI: "Write a JavaScript function to validate a form with email and password fields"

// AI generates complete solution:
function validateForm() {
  const email = document.getElementById('email').value;
  const password = document.getElementById('password').value;
  
  // Validate email format
  const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
  if (!emailRegex.test(email)) {
    showError('email', 'Please enter a valid email address');
    return false;
  }
  
  // Validate password (min 8 chars, with number and special char)
  if (password.length < 8) {
    showError('password', 'Password must be at least 8 characters');
    return false;
  }
  
  if (!/\d/.test(password) || !/[!@#$%^&*]/.test(password)) {
    showError('password', 'Password must contain at least one number and one special character');
    return false;
  }
  
  return true;
}

function showError(field, message) {
  const errorElement = document.getElementById(`${field}-error`);
  errorElement.textContent = message;
  errorElement.style.display = 'block';
}