In this lesson we take a look at how we are able to use variables with math operators in order to calculate a new value for that variable. When we use the let keyword to declare a variable, we are able to use mathematical assignment operators to quickly add, subtract, multiply, or divide a value from our variable. Instead of writing a long hand statement like x = x + 10 we are able to write it shorthand by saying x += 10 and this would accomplish the same thing. This same concept can be applied when subtracting, multiplying and dividing variables and it will work just as well by only switching our math operator. We see examples for addition, subtraction, multiplication, and division in this video. Understanding Mathematical Assignment Operators with variables is a key concept in understanding JavaScript and many other programming languages!

In Codecademy’s Intro to JS course, you’ll learn all about variables and mathematical assignment operators in JavaScript. This beginner-friendly course will teach you the fundamentals of using variables and operators to perform calculations in your code. In 2023, understanding how to use variables and operators is essential for any programmer looking to write clean and efficient code.

With Codecademy’s interactive lessons, you’ll learn how to declare and assign values to variables using the let keyword. You’ll also learn about the different mathematical assignment operators and how to use them to perform calculations on your variables. By the end of the course, you’ll have a solid understanding of how to use variables and operators in your own projects.

Codecademy’s Intro to JS course is perfect for beginners who are just starting out with JavaScript. With clear explanations and plenty of examples, you’ll be able to start writing your own code in no time. And with Codecademy’s community of learners and experts, you’ll always have someone to turn to if you need help.

So if you’re ready to start learning about variables and mathematical assignment operators in JavaScript, sign up for Codecademy’s Intro to JS course today. With our expert instruction and hands-on learning approach, you’ll be well on your way to mastering this essential programming skill.