Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Ruby Ruby Blocks Working With Blocks Block Method Practice: Arrays

Posted by Nyra Dream
Nyra Dream
Courses Plus Student 4,409 Points

How do I use the .select method to move an item into another array?

I don't understand how the .select method can move an item to another array.

array_blocks.rb 
#using the 'select' method, create a new array named 'house' that contains 
#any items from the 'array' varibale with a length greater than four characters.
array = ["Tree", "House"]
house = []
if array.select{|item| item.length > 4} == true

end

1 Answer

Steve Hunter
Steve Hunter
57,712 Points

Nearly there, Nyra!

You need to assign the value returned from the select function to a variable named house. The returned value will be an array.

Then start the select, and pass in a block like |item|. Then set the condition to be selected, item.length > 4 and you're good to go! 

array = ["Tree", "House"]
house = array.select { |item| item.length > 4 }

I hope that makes sense.

Steve.