Question

I have array

numbers = [ 1, 2, 3, 4, 5, 6 ]

I have a variable:

number = 4

I want with a loop for or each block return false unless the number 4 for this case exist in array.

numbers.each do |number_loop| 
    return false unless number_loop == number   
end

But I get an error:

LocalJumpError: unexpected return
from (irb):25:in `block in irb_binding’

Answer 1

Unless you’re doing something else in the block that you’ve hidden from posting here, why don’t you just do:

return false if numbers.include? number

As for the reason you get a LocalJumpError there: if your code isn’t in a method then there isn’t anything to return to (or, put another way: nothing to jump back to). In that case you’re probably trying to set a variable rather than return, and you’d want to do:

is_included = numbers.include? number