How to make an array unique if all elements are same in array, Ruby?

Question

using Ruby 2.0

if

array_a = [360,370,360,350,360,360,360]

output : array_a = [360,370,360,350,360,360,360]

if 

array_a = [360,360,360,360]

output : array_a = [360]

If all elements are same then only unique array should come, else same array.

I am trying to implement this logic but not able any hint please ?

Marek Lipka · Accepted Answer · 2014-05-22 10:10:14Z

3

You can use Array#uniq, checking if result array's size is 1:

uniq_array_a = array_a.uniq
output = uniq_array_a.one? ? uniq_array_a : array_a

edited May 22, 2014 at 10:10

answered May 22, 2014 at 9:40

Marek Lipka

51.3k7 gold badges90 silver badges93 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

BroiSatse Over a year ago

Instead of array_a.uniq.count == 1 you can do array_a.uniq.one?

user3664342 Over a year ago

Nice Thanks @BroiSatse and Marek Lipka

Marek Lipka Over a year ago

I noticed the downvote. How could I improve my answer?

jvanbaarsen · Accepted Answer · 2014-05-22 09:40:18Z

0

You can try array_a.uniq

For example:

a = [10, 20, 30, 10, 20] a.uniq # => [10, 20, 30]

answered May 22, 2014 at 9:40

jvanbaarsen

3392 silver badges12 bronze badges

2 Comments

user3664342 Over a year ago

If all elements are same in an array then only i want unique array else same as array whatever is there

jvanbaarsen Over a year ago

Yeah, i got it :-) You should go with the answer of Marek Lipka!

Collectives™ on Stack Overflow

How to make an array unique if all elements are same in array, Ruby?

2 Answers 2

3 Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related