On: Build a real-time Twitter clone with LiveView and Phoenix 1.5

[andy_ppp]

One of the things I like about Guards is that you can enforce/match against types as needed.

[theonething → andy_ppp]

Guards are nice, but compared to static typing, they a run time check whereas static typing alerts you to errors at compile time.

[andy_ppp → theonething]

I’m a fan of static types don’t get me wrong, I’m just saying with guards and dialyser it’s 60% of the way there compared to nothing. Also I don’t seem to make to class of errors I do in other languages because 90% of this time passing the wrong thing breaks immediately due to pattern matching.

[sph → theonething]

Guards are mostly used to do pattern matching, not to specify which types a function accepts, though you can use them as such.