Javascript: final / immutable global variables?

Question

I think I know the answer but... is there any way to prevent a global variable from being modified by later-executing <script>? I know global variables are bad in the first place, but when necessary, is there a way to make it "final" or "immutable"? Hacks / creative solutions are welcome. Thanks

Answer 1

the const keyword?

Answer 2

I know this question is old, but you could use Object.freeze(yourGlobalObjectHere); I just wrote a blog post about it here.