Sha256: 3d2d483f6bbc3d07ffa5923a19a2a26370a92ad274aa4cae8b8533c612301658
Contents?: true
Size: 634 Bytes
Versions: 7
Compression:
Stored size: 634 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
7 entries across 7 versions & 2 rubygems