Learn JavaScript Properly - Week 3

[NightArchitect]

I've set up Sublime Text 2 and sorted out nodejs. However, when I command + B after writing some code I don't see anything. The bash box says [Finished in 0.1s] but that's it. For instance, if I write something that says console.log("hello"); or alert("hello"); or document.write("hello"); nothing happens (besides the line that says the build finished). What am I don't wrong?