Book Image

JavaScript by Example

By : Dani Akash S
Book Image

JavaScript by Example

By: Dani Akash S

Overview of this book

JavaScript is the programming language that all web developers need to learn. The first item on our JavaScript to-do list is building g a To-do list app, which you'll have done by the end of the first chapter. You'll explore DOM manipulation with JavaScript and work with event listeners. You'll work with images and text to build a Meme creator. You will also learn about ES (ECMAScript) classes, and will be introduced to layouts using the CSS3 Flexbox. You'll also develop a responsive Event Registration form that allows users to register for your upcoming event and use charts and graphics to display registration data. You will then build a weather application, which will show you different ways perform AJAX requests and work with dynamic, external data. WebRTC enables real-time communication in a web browser; you'll learn how to use it when you build a real-time video-call and chat application later in the book. Towards the end of the book, you will meet React, Facebook's JavaScript library for building user interfaces. You'll throw together a blog with React, and get a feel for why this kind of JavaScript framework is used to build large-scale applications. To make your blog more maintainable and scalable, you'll use Redux to manage data across React components.
Table of Contents (8 chapters)

Adding Google Maps to the web page

Open the about.html file in VSCode or your text editor. It will have two paragraph <p> tags, in which you can add some information regarding your event. After that, there will be a <div> element with the ID #map, which is supposed to show the location of your event in a map.

I have asked you to generate an API key to use Google Maps before. If you haven't generated it, please get one from: and add it to your .env file's GMAP_KEY variable. According to the Google Maps documentation, to add a Map with a marker to your web page, you must include the following script on the page:

<script async defer src="">

Here, the async and defer attributes of the <script> tag...