Slide 1: Introduction to Fetching Data with JavaScript and Svelte

• Welcome to today's lesson!
• Objectives:
  • Understand JavaScript's role in web development.
  • Learn about REST APIs.
  • Fetch and display JSON data using Svelte.

Slide 2: JavaScript in Web Development

• JavaScript is a crucial language in web development.
• It allows us to make dynamic and interactive web pages.
• Today, we'll explore how to use it to fetch and display data from APIs.

Slide 3: What Are REST APIs?

• REST (Representational State Transfer) APIs are a standard for web communication.
• They allow us to retrieve, send, and manipulate data over the web.
• Think of them as a bridge between your web application and external data sources.

Slide 4: Making API Requests

• We'll focus on making GET requests to fetch data.
• JavaScript's fetch() method is a powerful tool for this purpose.
• It sends a request to a specified URL and returns a Promise that resolves to the Response.

Slide 5: HTTP Request Methods

• HTTP has various methods; we're using GET to retrieve data.
• Other methods include POST, PUT, DELETE, etc.
• GET is safe and idempotent, ideal for fetching data.

Slide 6: JavaScript fetch() Method

• Example: fetch(url)
• It returns a Promise.
• We can use .then() to handle the response when it arrives.
• JSON data is often returned from APIs.

Slide 7: Svelte - A Frontend Framework

• Svelte is a modern JavaScript framework for building user interfaces.
• It compiles components to highly efficient JavaScript.
• We'll use Svelte to display fetched data.

Slide 8: Key Takeaways

• JavaScript is essential for dynamic web development.
• REST APIs enable data exchange between web applications and external sources.
• fetch() is a JavaScript method to request data from APIs.
• Svelte simplifies building interactive UIs.

Slide 9: Q&A

• Any questions or clarifications before we move on to our practical demonstration?