02-first-program

Lesson 02: Your first program

Hello world, and how a JS file is executed.

What you'll learn

• a .js file is a script run top-to-bottom
• console.log(...) prints to the terminal
• no compile step — Node runs the source directly
• statements usually end with ; (optional, see ASI lesson)

Example

See examples/.

Exercise

Print 'Hello, ' using a variable.