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| -rw-r--r-- | ruby.html.markdown | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ruby.html.markdown b/ruby.html.markdown index 97f7a516..3111d09b 100644 --- a/ruby.html.markdown +++ b/ruby.html.markdown @@ -327,6 +327,11 @@ puts doubled puts array #=> [1,2,3,4,5] +# another useful sintax is .map(&:method) +a = ["FOO", "BAR", "BAZ"] +a.map { |s| s.downcase } #=> ["foo", "bar", "baz"] +a.map(&:downcase) #=> ["foo", "bar", "baz"] + # Case construct grade = 'B' |