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Earlier we saw that if you put an asterisk in front of a formal
parameter in a method definition, multiple arguments in the call to the
method will be bundled up into an array. Well, the same thing works in
reverse.
When you call a method, you can explode an array, so that each of its
members is taken as a separate parameter. Do this by prefixing the
array argument (which must follow all the regular arguments) with an
asterisk.
def five(a, b, c, d, e)
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"I was passed #{a} #{b} #{c} #{d} #{e}"
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end
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five(1, 2, 3, 4, 5 )
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� |
"I was passed 1 2 3 4 5"
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five(1, 2, 3, *['a', 'b'])
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� |
"I was passed 1 2 3 a b"
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five(*(10..14).to_a)
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� |
"I was passed 10 11 12 13 14"
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