dreamy dragon
I'm just getting started with the basics and bumped into cross-type comparison. Docs says it goes smaller to bigger like number < atom < reference ... So I wondered what happens to aliases. It turns out number < alias < atom when I do this.
73 < List and List < :ok
:ok < List == false
So I googled and figured that aliases resolve into atoms. But then why is it smaller than an atom?
solar forge
Aliases are atoms. And atoms are sorted according to their lexicographic order.
In the same sense :a < :b
dreamy dragon
Aliases **are** atoms. And atoms are sorted according to their lexicographic ord...
How should I take List < :a then?
solar forge
Do not understand the question. You should just assume that these will be in some arbitrary order, for your code that shouldn't really matter what that order is.
List == :"Elixir.List" BTW
dreamy dragon
Do not understand the question. You should just assume that these will be in som...
So, I understood "lexicographic" as alphabetical, ASCII-ordered. If so, L in List comes after than : and " then why is it still smaller?
I must be missing some simple concept here
solar forge
: and " are just syntax, it is not atom value
dreamy dragon
Yeah then L comes after a, why List < :a?
solar forge
L comes before a in ASCII
dreamy dragon
Ooh I see that was my confusion Thank you!
solar forge
Just remember that first letter of List atom is E 😉
dreamy dragon
Just remember that first letter of `List` atom is `E` 😉
Wow I was about to miss that, thank you @solar forge !
night robin
Make sure to have a guard clause when comparing integers
dreamy dragon
Make sure to have a guard clause when comparing integers
I don't understand what guard is yet, but I take your word for it