[thomasfoster96]

Dynamic property names are quite different to Symbols in ECMAScript 6.

[anustart666]

Use a global const for keygen, 'symbol' is most likely just a syntactic sugar for global const...

[thomasfoster96]

Well a Symbol is guaranteed to be unique (unless you use the symbol registry) and can't be converted to a string - things that you can't say about a global const that is a string.