Args are passed down through the call stack. You just need to make sure your top-level task captures all the arguments all of the dependencies require. In your case you’ll want to put first_name and last_name on the send_letter task. Here is an example that shows named arguments defined elsewhere flowing into the dependency (even … Read more
Object#method returns a Method object giving meta-data about a given method. For example: > [].method(:length).inspect => “#<Method: Array#length>” > [].method(:max).inspect => “#<Method: Array(Enumerable)#max>” In Ruby 1.8.7 and later, you can use Method#owner to determine the class or module that defined the method. To get a list of all the methods with the name of the … Read more
Yes. According to the Ruby Docs for Hash, “Hashes enumerate their values in the order that the corresponding keys were inserted.” So you should always get the same order for a hash if it is created in the same way.
ANSWER: I’m self answering my question here. rake spec will take the SPEC_OPTS environment variable. rake spec SPEC_OPTS=”–format documentation”
Summary In Ruby, methods can be overridden, so there are classes where there are multiple methods that lead to the same results so that behavior can be easily overridden in one method without affecting the other. Some classes do this using separate methods, while other classes implement this behavior as aliases. Which is which, and … Read more
Yes, it is possible using the fnmatch method: File.fnmatch(“foo*”, “food”) #=> true
You already found the solution (name as a string). You may extend this answer. There is no need to define namespaces and tasks with symbols. You can use Strings. Doing this, you have the advantage of same type for definition and usage of task names. Your example looks like this: namespace ‘demolition’ do task ‘fire_bazooka’ … Read more
According to Avdi Grimm from RubyTapas $1 is a global variable which can be used in later code: if “foobar” =~ /foo(.*)/ then puts “The matching word was #{$1}” end Output: “The matching word was bar” In short, $1, $2, $… are the global-variables used by some of the ruby library functions specially concerning REGEX … Read more
Double-quoted strings support the full range of escape sequences, as shown below: \a Bell/alert (0x07) \b Backspace (0x08) \e Escape (0x1b) \f Formford (0x0c) \n Newline (0x0a) \r Return (0x0d) \s Space (0x20) \t Tab (0x09) \v Vertical tab (0x0b) For single-quoted strings, two consecutive backslashes are replaced by a single backslash, and a backslash … Read more
You need to parenthesize your argument: something(‘hello’) { do_it } That should work.