You already know Python. This course gets JavaScript running on your computer, and starts you
on the ways JavaScript does things differently. Here’s a first taste: one line of a setup-check
script, with platfrom typed instead of platform. First in Python:
print("OS:", sys.platfrom)
Python stops with an AttributeError and asks whether you meant .platform. Here’s the same
slip in a JavaScript port of the script:
console.log("OS:", process.platfrom);
When you run it, it prints its report without an error: