Gain insights into JavaScript fundamentals. Delve into variables, operators, functions, arrays, objects, and loops. Discover essential concepts to advance further in your coding journey with this beginner-friendly course.

This is an introduction to JavaScript for the complete beginner. It'll provide the fundamentals of the language. Topics include variables, operators, functions, arrays, objects, and loops. After this course, you should be ready to further your learning through advanced courses or other resources.

There is NO installation required for this course. Code can be viewed and run directly from the lessons.

This course has been created by Arnav Aggarwal, a full-stack engineer. Arnav has attended a coding boot camp and has taught at another one. He has extensive experience understanding how people learn to code. In under a month, Arnav's published articles on JavaScript concepts have received over 50,000 views and have been featured on Medium.com and code mentor.io due to their value.

After this course, check out the next one in the series.

Step Up Your JS: A Comprehensive Guide to Intermediate JavaScript

https://goo.gl/GjM8Mu

Introduction to JavaScript: First Steps

# Creating a Variable

We create a variable with the `let` keyword. We write `let` and then the variable name we want afterward. We give it the value we want using `=`, just like a line from algebra.

The variable `number` now has the value `10`.

Note that we add a semicolon at the end. This isn't required, but it is highly recommended and most code you see in the wild will use semicolons. There are rare cases where not using semicolons can lead to an error. We'll use them consistently throughout this course. They should be used at the end of every statement, which effectively means at the end of every line.

We can also use the `var` keyword to declare a variable. It does essentially the same thing but behaves a little differently, sometimes in unexpected ways. `let` was added to the language in 2015.

Learn how to create and name variables in JavaScript. Learn what variable names are valid.

Introduction

Variables

Operators & if-statements

Functions

Arrays

Objects

Loops

Conclusion

Creating & Naming Variables

Creating a Variable