Gain insights into building real-world components using JavaScript. Delve into dropdown menus, auto-validating forms, autocomplete search, infinite scroll, and tooltips to tackle common frontend challenges seamlessly.

Learn to apply your introductory knowledge of HTML, CSS, and JavaScript to build beautiful, real-world components. In this course, you'll go through the process of developing several complex components, including:

- eBay's dropdown menu
- Gmail's auto-validating form
- Google's main autocomplete enabled search
- Twitter's infinitely scrolling list
- Medium's tooltips

You'll learn how to approach common frontend challenges, what questions to ask yourself, how to design solutions once you've thought of them, how to debug and work with mistakes, and more.

The end-goal is to empower you to look at anything you see on a website and be able to say, "I can build that!"

Intermediate JavaScript: Building Frontend Components

We are now at a point where we want to get different values depending on the menu item that's active, so we want the server to give varied responses based on the data passed.

We'll follow the following pattern: start from a blank page so that we can focus on testing functionality. 

For this example, we'll create an input, and whenever we click a button, the client will send a `GET` request to the server with whatever's been typed into the input as data. The client will then append the response to a `div`.

This lesson will explain how to get a varied response from a server based on the input we send to it. This will help us build a more accurate dropdown menu in the end.

Welcome

Building a Dropdown Menu

Building the Autocomplete Search

Building Tooltips

Building an Autovalidating Form

Building an Infinite List

From Toy Components to Production

Getting Varied Responses from Server