How to cleanly deal with global variables?
I have a number of aspx pages (50+). I need to declare a number(5-7) of global variables in each of these pages. Variables in one page independent of the other pages even though some might be same.
Currently I am declaring at the page top and outside of any function.
Should I approach this differently and is there any side effects of this approach?
If exact duplicate, please let me know. Thanks
Answer
It is best practice to not clutter the global scope. Especially since other frameworks or drop-in scripts can pollute or overwrite your vars.
Create a namespace for yourself
https://www.geeksforgeeks.org/javascript-namespace/
More here: https://stackoverflow.com/search?q=namespace+javascript+global
Some examples using different methods of setting the vars
myOwnNS = {}; // or window.myOwnNS
myOwnNS.counter = 0;
myOwnNS["page1"] = { "specificForPage1":"This is page 1"}
myOwnNS.page2 = { "specificForPage2":"This is page 2", "pagenumber":2}
myOwnNS.whatPageAmIOn = function { return location.href.substring(location.href.lastIndexOf('page')+4)}