study.txt

study sheet

METHODS

	**string**
		#gsub & #gsub!

	**array**
		#sort <- can take a block!
		%w(some text) <= will split on whitespace.  Look into this

	**iterators**
		loop

	**hash**
		#sort_by (returns array of arrays)

	**kernel**
		#is_a? object_type

	misc. info about methods

		splat arguments - for when you don't know how many arguments you will have!
			example:
				def what_up(greeting, *bros)
					bros.each { |bro| puts "#{greeting}, #{bro}!" }
				end
	
				what_up("What up", "Justin", "Ben", "Kevin Sorbo")
				=> What up, Justin!
				=> What up, Ben!
				=> What up, Kevin Sorbo!

OTHER INFORMATION

	a <=> b - the combined comparison operator
		returns -1 if a < b, 0 if a == b, and 1 if a > b