I find myself in position of an old copy of SAMS TY Ruby in 21 Days; written in regard to Ruby version 1.7
I have version 2.7.2p137 installed and I am getting by OK (in the first few chapters anyway). The book claims that a method that doesn’t contain a line with “return” in it will go ahead and return the last expression it evaluates, so that
def sumdiff(n1, n2) n1+n2, n1-n2 end
will return (keep up with me) 18, 2 if given the arguments 10, 8.
But when I tried running that I got
syntax error, unexpected ‘,’, expecting `end’
And then it worked fine once I reran it with “return” where it should be.
Was this functional "return"lessness a feature in Ruby 1.7 that was later removed? Or am I still doing something wrong?