From: Arup Rakshit <lists@...>
Date: 2013-01-12T20:33:08+09:00
Subject: Re: Array methods creating confusions as per their functionalities

Arup Rakshit wrote in post #1092023:
> Alex van der Ruchei wrote in post #1092021:
>> Try reading http://apidock.com/ruby/Array/zip etc.
>
> Wow nice docs you have provided! its too handy to understand as it
> explains everything with small codes.
>
> let me look into the docs you just provided.
>
> Thanks for your time!

to understand the ZIP method i used the below code,but getting an 
error.I might overlooked the bad area.can you help?

irb(main):008:0> a = [ 4, 5, 6 ]
=> [4, 5, 6]
irb(main):009:0> b = [ 7, 8, 9 ]
=> [7, 8, 9]
irb(main):010:0> [1,2].zip(a,b)
=> [[1, 4, 7], [2, 5, 8]]
irb(main):011:0> a.zip([1,2,]){|i|i>4}
NoMethodError: undefined method `>' for [4, 1]:Array
        from (irb):11:in `block in irb_binding'
        from (irb):11:in `zip'
        from (irb):11
        from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):012:0> a.zip([1,2,]){|i|i>4}
NoMethodError: undefined method `>' for [4, 1]:Array
        from (irb):12:in `block in irb_binding'
        from (irb):12:in `zip'
        from (irb):12
        from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):013:0> a.zip([1,2,]){|i|(i>4)}
NoMethodError: undefined method `>' for [4, 1]:Array
        from (irb):13:in `block in irb_binding'
        from (irb):13:in `zip'
        from (irb):13
        from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):014:0> a.zip([1,2,]){|i|i>4}
NoMethodError: undefined method `>' for [4, 1]:Array
        from (irb):14:in `block in irb_binding'
        from (irb):14:in `zip'
        from (irb):14
        from C:/Ruby193/bin/irb:12:in `<main>'
irb(main):015:0>

Thanks!

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