On Thursday, 3 September 2015 at 21:01:10 UTC, Ola Fosheim
Grostad wrote:
On Thursday, 3 September 2015 at 13:12:07 UTC, Adam D. Ruppe
wrote:
On Thursday, 3 September 2015 at 06:45:16 UTC, Jacob Carlborg
wrote:
There's a lot of stuff other languages can do that JS can't.
For example, classes, which a lot of developers prefer to use
in favor of the weird object system in JS.
If you don't change the prototype object, then it is mostly
similar, but more flexible. Functions are constructors and
prototype objects are class definitions. You could also use
typescript, typescript playground is quite fun. It allows you
to explore the JS output in realtime.
You can kinda do classes in JS, it just isn't pretty syntax.
In the D to JS toy I did, I just did an array of function
pointers to handle the virtual functions, similar to how D is
compiled to machine code.
It'd be fairly ugly to write by hand but when converting
languages, it works well enough.
Huh? Dynamic languages have dynamic lookup, how is that
different from virtual functions?
Maybe because you need 2 map lookups + 1 indirection instead of
an array lookup in addition of the indirect call.
But who know, with a vectorized SSA, it surely will be faster
than light.
