Is there any difference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations? If not, then I would like to use key: "value" notation. Is there a gem that helps me to conve...

Given the example: def method_of_doom my_string = "I sense impending doom." my_string.ah_ha_i_called_a_nonexistent_method rescue NoMethodError => e: puts "PROBLEM: " + e.to_s rescue Exception: ...

The well-cited RIP Hash rocket post would seem to imply the Hash Rocket syntax (:foo => "bar") is deprecated in favor of the new-to-Ruby JSON-style hash (foo: "bar"), but I can't find any defini...

The rescue which could assigns a variable to reference the error object has this syntax (=>) rescue => e If rescue is the one of the general method call, what's the meaning of =>. Could...

What's the difference between colon : and fat arrow => in Ruby? Or when to use what? :foo => true foo: true

While learning Ruby I've come across the "=>" operator on occasion. Usually I see it in the form of :symbol => value and it seems to be used frequently when passing values to functions...