I have the following array
cities = ["Kathmandu", "Pokhara", "", "Dharan", "Butwal"]
I want to remove blank elements from the array and want the following result:
cities = ["Kathmandu", "Pokhara", "Dharan", "Butwal"]
Is there any method like compact
that will do it without loops?
Answer
There are many ways to do this, one is reject
noEmptyCities = cities.reject { |c| c.empty? }
You can also use reject!
, which will modify cities
in place. It will either return cities
as its return value if it rejected something, or nil
if no rejections are made. That can be a gotcha if you're not careful (thanks to ninja08 for pointing this out in the comments).
No comments:
Post a Comment