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Swap Elements Of An Array In Ruby

DZone's Guide to

Swap Elements Of An Array In Ruby

· Web Dev Zone
Free Resource

Discover how to focus on operators for Reactive Programming and how they are essential to react to data in your application.  Brought to you in partnership with Wakanda

class Array
    def swap!(a,b)
         self[a], self[b] = self[b], self[a]
    self
    end
end

You can now do stuff like..

[1,2,3,4].swap!(2,3)  # = [1,2,4,3] etc..

Many thanks to Sam Stephenson and technoweenie for their suggestions.

Learn how divergent branches can appear in your repository and how to better understand why they are called “branches".  Brought to you in partnership with Wakanda

Topics:
ruby

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