Modern JS: don't use `var` in css-examples

[teoli2003]

Quite a few examples in this repo extensively use var.

This is a bad practice; we have eliminated them from mdn/content (and other repos). We should do the same here: most will be simply replaced by const and let, although there may be a few more complex cases (where var is used inside a scope for a variable at a higher scope)

[pragyamishra56]

@teoli2003 Sir If it possible to allow me to fix this issue ?

[teoli2003]

Just go ahead; it is yours. Don't create too big PRs, they take longer to review.

[pragyamishra56]

@teoli2003 Sir Thanks for pointing this out! I completely agree with eliminating the use of 'var'. It's considered a best practice to use 'const' and 'let' for better scope management. I'll work on addressing this across the repository, replacing 'var' with the appropriate declarations. Your input is highly appreciated!

[pragyamishra56]

@teoli2003 Sir, Replace extensive var usage with const/let, aligning with the best So, should I replace 'var' with 'const/let'?

[teoli2003]

Yes.

[pragyamishra56]

@teoli2003 Sir, Could you confirm that In every JS file, I will replace the var with const/let?

[teoli2003]

With the relevant one, yes. If you are not sure, start with one file.

[pragyamishra56]

@teoli2003 Sir, Issue #163 is resolved now could you please have a look at it if any issue is raised then let me know

[teoli2003]

You need to open a pull request.

[pragyamishra56]

@teoli2003 Sir I opened a pull request could you review it if any further issue is raised then let me know