Expression ".foo = 5" is always false, only works with ".foo = '5'". AKA Exhibit.Set only stores strings

[Pike]

When comparing for equality, the operator doesn't try to parse numbers, and thus always comes back with false.

In a way this is due to the fact that you can put Strings, Numbers and Booleans into an Exhibit.Set, but it only returns Strings.

ES6 has a real Set, but that probably breaks browser compat. Maybe use a shim that's out there?

Also, changing the semantics of Exhibit.Set() might break a ton of sites, sadly.