How to find matching values in ruby array?

Question

Have arrays [1, 2, 5] and [1, 2, 3] I would like to extract matching values, if there is a method like:

[1, 2, 5].match([1, 2, 3]) #=> [1, 2]

Is there any method on array, thank you

possible duplicate of Find values in common between two arrays — Andrew Grimm
– Andrew Grimm, Commented Nov 26, 2012 at 4:21

Andrew Marshall · Accepted Answer · 2012-11-26 04:11:15Z

28

Very simple:

[1,2,5] & [1,2,3]  #=> [1,2]

Other useful array operations include:

[1,2,3] | [1,3,4]  #=> [1,2,3,4]
[1,2,3] - [1,3,4]  #=> [2]
[1,2,3] + [1,3,4]  #=> [1,2,3,1,3,4]

Andrew Marshall

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answered Nov 26, 2012 at 4:03

ray_linn

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