Does the ORDER of javascript files matter, when they are all combined into one file?

Question

In todays modern age, where lots of (popular) javascripts files are loaded externally and locally, does the order in which the javascripts files are called

Answer 1

If I'm understanding your question I think you're asking if it matters where in a file a function/method is defined, and the answer is no, you can define them anywhere in a single source file. The JavaScript parser will read in all symbols before trying to run the code.