is it common to mutate function arguments in ruby?

I'm coming from the JS world where immmutability is the key to sanity

EDIT: think i got it - we can sort and reverse in place since chars returns a new array. No args are being mutated

This kinda defeats the purpose, but still the right call nonetheless

Dupe issue.

155+ general obviouses.

Language?

Did you ever figure out what was happening with this? Why was it blowing up with large numbers?

Ruby lets you specify default values for a method's arguments---values that will be used if the caller doesn't pass them explicitly. This is done using the assignment operator =.

because name of method is 'always'

could somebody explain to me why did the author assign n to nil when he passed it to the method always?

random tests need more precision

I benchmarked it and found it to be at least twice as slow as the ternary implemenatation. It looks nice though.

wow. great job on this.

This cracked me up.