It is programming tradition that the first thing you do in any language is make it output 'Hello world!'.

We'll do this in JavaScript, using something called console.log().

Inside of exercise.js there's a line of code that will print "Hello world!".

• Open a terminal window
• Change directory to this folder (cd B-hello-world)
• Run the program using node (node exercise.js)

• Try to console.log() something different. For example, 'Hello World. I just started learning JavaScript!'.
• Try to console.log() several things at once.
• What happens when you get rid of the quote marks?
• What happens when you console.log() just a number without quotes?