Sha256: 7396bcf0ce0c90bd8520b8ec9796b69dd19cad4946ded7ac1eba11b6af1adfa0
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Size: 624 Bytes
Versions: 10
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Stored size: 624 Bytes
Contents
module Kernel
# For debugging and showing examples. Currently this
# takes an argument of a string in a block.
#
# demo {%{ a = [1,2,3] }}
# demo {%{ a.slice(1,2) }}
# demo {%{ a.map { |x| x**3 } }}
#
# Produces:
#
# a = [1,2,3] #=> [1, 2, 3]
# a.slice(1,2) #=> [2, 3]
# a.map { |x| x**3 } #=> [1, 8, 27]
#
# TODO: Is there a way to do this without the eval string in block?
# Preferably just a block and no string.
def demo(out=$stdout,&block)
out << sprintf("%-25s#=> %s\n", expr = block.call, eval(expr, block.binding).inspect)
end
end
Version data entries
10 entries across 10 versions & 1 rubygems