Introduction to Variables

This video introduction to variables provided by Khan Academy features a live code editor alongside the display of the code. Notice how the changes to the code on the left change the display of the image on the right. When programming on Khan Academy, that is a fun and unique feature which you get to have as you write code for projects or for fun on their site. The display is a little cut off on our site so for a slightly better viewing experience you can click the title of the video or the "View on Khan Academy" button - they both are links to the video on Khan Academy's website.

Intro to Variables

Made using: Khan Academy Computer Science.

Variables Quiz

Quiz for Introduction to Variables

Which of the following options properly makes a variable called "faceWidth" and assigns it a value of 200?

Answer feedback

Another thing you can do is assign variables equal to other variables.

Let's say that you want your character like Winston above to have a face height equal to his face width. Type the code to do that in the box below. Please call your variables "faceHeight" and "faceWidth". Assume the faceWidth variable has already been made and given the a value in the statement below. You will need to make faceHeight.

var faceWidth = 30;

type your response in the box below and when you think you've got it right, click "Check Answer" button below.