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I'm Learning Ruby.
I found the method String#each at http://ruby-doc.org/core/classes/String.html.
When I try using it...
irb(main):001:0> "hello\nworld".each {|s| p s} NoMethodError: undefined method `each' for "hello\nworld":String ...but I get that NoMethodError.
I'm using Ruby 1.9.1p253 so I don't think I'm using an old version. What's going on?
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To display a string in your program, you can use the print method: print "Let's print out this string." The print method displays the string exactly as written. print 'This is the first string.
The each_char in Ruby is used to pass each character that makes a string to a block in Ruby. The block of each_char takes a single parameter which represents characters in a string.
Repeat a character or string N times in Ruby. In Ruby, when the * operator is used with a string on the left hand side and an integer on the right hand side (i.e. string * integer ), it repeats the string as many times as specified by the integer. For example: foo = "quack!" * 3 puts foo # output: "quack!
Ruby 1.9 no longer has each on the String class. Use either each_char or each_line depending on what you want to do. The docs for Ruby 1.9 String are http://ruby-doc.org/core-1.9.3/String.html.
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