Finding an object(s) within an array with specific letter using Ruby

Question

So I'm trying to create a method that takes an Array and a letter as arguments and returns a new array of the words that contain that letter.

I have this thus far:

def finder(array, thing_to_find)
  find = array.keep_if {|x| x.include?(thing_to_find)==true}
   return find
end

When I run the program in Ruby, it's saying the .include? is not a valid block method.

Any suggestions?

Arup Rakshit · Accepted Answer · 2014-10-08 20:08:08Z

3

You could write more simple way -

def finder(array, thing_to_find)
  array.select { |word| word.include? thing_to_find }
end

array will pass each element word from that array to the block in each iteration. Now word.include?(thing_to_find) will be evaluated - If it returns true, then word will be selected and stored to an temporary array, otherwise not. Once all iterations will be completed with respected to the array, then all selected elements from each block execution, which were being stored inside a temporary array, that array will be returned.

edited Oct 8, 2014 at 20:08

answered Oct 8, 2014 at 20:01

Arup Rakshit

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2 Comments

Lasonic Over a year ago

Thanks Arup, can you explain why my code doesn't run?

Arup Rakshit Over a year ago

@Lasonic.. I don't know what did you mean. Your code is too much ugly, but for me it is working. I didn't notice any error.

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