Introduction to JavaScript

Here is my experience of attending a workshop by Vimal Daga Sir on Javascript.

What is JavaScript?

JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. JavaScript gives web pages interactive elements that engage a user.

What is JavaScript used for?

JavaScript is mainly used for web-based applications and web browsers. JavaScript is also used for:

1. Adding interactive behavior to web pages.
2. Creating web and mobile apps.
3. Building web servers and developing server applications.
4. Game development

Key-Takeaways:

• A browser acts as an interpreter for the code which is written in JavaScript. It runs the code, displays the output and helps to make the website interactive.
• We can implement javascript in our code using the <script> tag.
• The document.getElementById() method returns the element with the specified id.
• In a Document Object Model (DOM), each node is an object of root document.
• JavaScript has three different popup boxes — Alert box, Confirm box and Prompt box.
• Bill Of Materials (BOM) is a centralized source of information which contains a list of items used to manufacture a product and the instructions.
• To integrate CSS with JavaScript we can use the get.ElementByClass().
• AJAX helps to create fast and dynamic web pages.
• JavaScript Synchronous statements are executed in a sequence, i,e the next statement won’t execute until the previous execution is complete whereas JavaScript Asynchronous statements do not follow a sequence.
• The JSON.parse() converts a text into a JS object. It is used to read data from a web server and display it inside a webpage.
• The <pre>tag displays text in a proper readable format.
• GET/POST are two methods in http to send data to a server.