Ruby snippets

example.rb

# jsquared: given an array with contents like ["47", 12, "hello"], 
# how do I prefix each element with a given string and then join 
# the elements together with another string? for example, something like 
# ["47", 12, "hello"].join_with_prefix("+", "**") should give me +47**+12**+hello

array = ["47", 12, "hello"]

result = String.new()
array.each do | s |
  s.join_with_prefix("+", "**")
  result.join("#{s}")
end
puts result



# delete leading whitespace (spaces/tabs/etc) from beginning of each line
# string.gsub(/^\s+/, "")

# delete BOTH leading and trailing whitespace from each line
# qbxml = string.gsub(/^\s+/, "").gsub(/\s+$/, $/)