Again what the heck does that mean huh?
Ohh sorry you came for meaning i know. Well then do you know global ????
then something global scope?
Of course not, then why would you be even here right?
Global scope means something is available globally, everywhere, to everyone. Well global space in your index.js file is whole page, In your browser will be the current window you are open now. Means if you declare a variable on line one, out side of every block you would write will be available for entire code of index.js file.