Array operation using map or collect in Ruby

Question

I have an array @a = [[9, 15], [], []]

I need to make it [9,15] using map method. How it is possible?

I have tried the below statement,

@a.map{|array| array.collect{|element| element} if array.any?}.compact

But giving [[9,15]] as output. Can anyone just help me out. Thanks :)-

score 5 · Accepted Answer · answered Jan 10 '14 at 13:33

5

I'm not sure about the requirements, but this gives the desired result

[[9, 15], [], []].flatten

answered Jan 10 '14 at 13:33

Ju Liu

is it a proper ruby method? – Rajesh Omanakuttan Jan 10 '14 at 13:33
If that is the answer, @RajeshCO, maybe you should accept it? – Ziggy Jan 10 '14 at 13:52
Sure, I was waiting for it – Rajesh Omanakuttan Jan 10 '14 at 13:57

1 Answers1