Traceur JS - window is not defined

Question

I have an existing project that accesses some variables off of the window scope. changing them around is an option, but I'd like to understand why the following isn't working...

//test.js
window.alert('I work');

traceur test.js
// -> ReferenceError: window is not defined

Why does this happen and how can I fix it? I cannot import window nor could I find any reference to how to fix this through searching.

Answer 1

As it turns out, you need to specify and output file if you want to compile your files to target the browser.

this command worked for me

traceur --out compiled.js test.js

Answer 2

If you are running it in command line you then there is no window object. window object are specific to browser. The window object represents an open window in a browser. I am not sure what traceur is and if it was build based on the intention to run on anywhere else except a browser window.

If not, then all references to things like window or dom (Document Object Model) will fail..