syntax | Daniel P. Clark

January 22, 2015 by Daniel P. Clark

Learning Your First Programming Language

If the idea of designing software intrigues you; then you’re in the right place. Often times the things that keeps you from moving forward is the “fear of the unknown”, or simply doubting your ability/capacity to learn. If programming looks like some big ominous thing and like it’s more trouble than it’s worth, then you…

January 1, 2015 by Daniel P. Clark

When to use Ampersand and/or Colon with Proc, Map, and Inject

So with Ruby permitting Procs called on Objects I’ve found sometimes a Colon Method will work, and sometimes you need a Ampersand Colon Method. For example, when I map &:upcase on a list of strings it works. [“a”,”b”,”c”].map(&:upcase) # = > [“A”, “B”, “C”] But if I try without the Ampersand I get: [“a”,”b”,”c”].map(:upcase) #…