Best ruby idiom for "nil or zero"
Objects have a nil? method.
if val.nil? || val == 0 [do something]endOr, for just one instruction:
[do something] if val.nil? || val == 0
If you really like method names with question marks at the end:
if val.nil? || val.zero? # do stuffendYour solution is fine, as are a few of the other solutions.
Ruby can make you search for a pretty way to do everything, if you're not careful.
From Ruby 2.3.0 onward, you can combine the safe navigation operator (&.) with Numeric#nonzero?. &. returns nil if the instance was nil and nonzero? - if the number was 0:
unless val&.nonzero? # Is nil or zeroendOr postfix:
do_something unless val&.nonzero?