Udemy- Complete JavaScript Course

Udemy- Complete JavaScript Course >> JavaScript language basics

Introduction to JavaScript

What is JavaScript?

• JavaScript is a lightweight, cross-platform, object-oriented computer programming language.
• JavaScript is one of the three core technologies of web development.
• JavaScript is most commonly used as part of webpages.
• Today, JavaScript can be used in different places:
  • Client-side: JavaScript was traditionally only used in the browser
  • Server-side: Thanks to node.js, we can use JavaScript on the server as well
• JavaScript is what made modern web development possible:
  • Dynamic effects and interactivity;
  • Modern web applications that we can interact with.

The Role of JavaScript

Variables and Data Types

Primitive JavaScript Data Types

• Number: Floating point numbers, for decimals and integers.
• String: Sequence of characters, used for text.
• Boolean: Logical data type that can only be true or false.
• Undefined: Data type of a variable which does not have a value yet.
• Null: Also means ‘non-existent’.

Operators

JavaScript Operator Precedence

Boolean Logic and Switch Statements

For these sections, my code lives on Github:    View GitHub Repo

1. Introduction to JavaScript
2. Getting Started with JavaScript
3. Variables and Data Types
4. Variable Mutation and Type Coercion
5. Operators
6. If / else Statements
7. Boolean Logic and Switch Statements
8. Coding Challenge 1
9. Coding Challenge 1: Solution
10. Functions
11. Statements and Expressions
12. Arrays
13. Objects and Properties
14. Objects and Methods
15. Loops and Iteration
16. Coding Challenge 2
17. Coding Challenge 2: Solution

Important Note: ES5, ES6 / ES2015 and ES2016