Nowadays JavaScript has three different keywords ... How would you go about declaring a global variable? It depends on the context, it’s different on a browser than a NodeJS application.

Global variables are divisive: an invaluable shortcut or a dangerous example of sloppy code? Let's talk about what they do, ...

Global variables are a common source of logic errors, so keeping a variable in the smallest scope is always good practice. Although variables are a fairly simple aspect of JavaScript, they are ...