I've Heard Global Variables Are Bad, What Alternative Solution Should I Use?

Question

I\'ve read all over the place that global variables are bad and alternatives should be used. In Javascript specifically, what solution should I choose.

I\'m thinking

Answer 1

Global variables are bad... if left unmanaged!

The potential risks of global variables is as high as the pleasure and productivity gains of having frequently used objects ready to use.

I don't believe one should seek a single alternative. Instead I advocate for one object in charge of managing those globals and as the code base/component matures, refactor them out

One thing not mentioned in the current answers which I think is critical is an understanding of DI and IoC containers. These address many of the problems people try to solve with global variables, but covering related concerns that plain globals can't, like object life cycles.