Global Constants Are Possible?

Hi! I’ve searched but had no luck finding an answer. I was hoping to define “global ” constants (global to a single form, to be used by fields for calculations).

I created an HTML element in the (top of) form and tried this:

<script> const CONST_CNF_CAP = 0.03003, CONST_LNF_IND = 0.02252, CONST_RZ_RES = 1.25;
</script>

And then within a field, for example, attempted to use it like so:
(function(){
var result;
result = CONST_CNF_CAP/fieldname14;
return PREC(result*1000000,1);
})()
…with no success. Is it possible to do this in a form?

Thank you! ??