Global Domination, Part Two � Yahoo! User Interface Blog

Global Domination, Part Two � Yahoo! User Interface Blog: "Global Domination, Part Two
April 16, 2008 at 1:29 pm by Douglas Crockford | In Development |

As I continue the practice of the craft of programming, I am always examining my practices. Can I improve the patterns that I use so that I can make my programs clearer, stronger, better? This is particularly important when working with a language like JavaScript which has a bias that favors patterns that are confusing, weak, and worse.

One of the worst features of JavaScript is its reliance on global variables.
This can be mitigated with global abatement and the module pattern, which can significantly reduce the number of global variables that we need to declare.

But when we must declare a global variable, how best should we do that?
JavaScript provides three ways of declaring a global variable, and they all
have problems. Which is least worst?"