Hacker News new | ask | show | jobs
by angersock 4148 days ago
So, that sort of makes sense if you were to use them as keys in the new Map and Set objects...but I again, I can't help but notice that I haven't felt their absence yet.

Thanks for the reference about CL make-symbol. Is there a practical use for this we actually would spot in the wild, or do I need to go up on the mountain with a copy of The Art of the Metaobject Protocol?
2 comments
fpgeek 4148 days ago
The standard Lisp use for generated symbols is to provide a way to reliably avoid name clashes during macro expansion.

I'm not sure if that qualifies as a practical use in the out in the wild or just a practical way to fix pain (e.g. CPP nonsense) that you can see out in the wild.

link
rnbwd 4148 days ago
I had no idea what a Symbol even was until I stumbled upon alt - https://github.com/goatslacker/alt

It's a small and simple code base, and much easier way to grok the concept than reading a book.

link
angersock 4148 days ago
Good link. You can see the usage in the first few lines here:

https://github.com/goatslacker/alt/blob/master/src/alt.js

They seem to be being used mostly as immutable constants for readability--which kind of fits with normal use, right? I'm just trying to see if there's anything else here I'm missing.

link