Why do I see “define not defined” when running a Mocha test with RequireJS?

Question

I am trying to understand how to develop stand-alone Javascript code. I want to write Javscript code with tests and modules, running from the command line. So I have insta

Answer 1

I don't use requirejs so I'm not sure what that syntax looks like, but this is what I do to run code both within node and the browser:

For imports, determine if we are running in node or the browser:

var root =  typeof exports !== "undefined" && exports !== null ? exports : window;

Then we can grab any dependencies correctly (they will either be available already if in the browser or we use require):

var foo = root.foo;
if (!foo && (typeof require !== 'undefined')) {
    foo = require('./foo');
}

var Bar = function() {
    // do something with foo
}

And then any functionality that needs to be used by other files, we export it to root:

root.bar = Bar;

As for examples, GitHub is a great source. Just go and check out the code for your favorite library to see how they did it :) I used mocha to test a javascript library that can be used in both the browser and node. The code is available at https://github.com/bunkat/later.