Mysterious error with beginner's ruby code (while loops) - ruby

Question

So this is my code. I'm learning while loops and not sure why this doesn't work. I'm getting an error.
i = 0
numbers = []
def while_var(x)
while i < #{x}
print "Entry #{i}: i is now #{i}."
numbers.push(i)
puts "The numbers array is now #{numbers}."
i = i + 1
puts "variable i just increased by 1. It is now #{i}."
end
while_var(6)
puts "Want to see all the entries of the numbers array individually (i.e. not in array format)? Here you go!"
for num in numbers
puts num
end
puts "1337"
This is my error
1.rb:5: syntax error, unexpected tSTRING_BEG, expecting keyword_do or '{' or '('
print "Entry #{i}: i is now #{i}."
^
I have no idea what this is all about. Thanks.
EDIT
So I have this revised code
def while_var(x)
i = 0
numbers = []
while i < x
print "Entry #{i}: i is now #{i}."
numbers.push(i)
puts "The numbers array is now #{numbers}."
i = i + 1
puts "variable i just increased by 1. It is now #{i}."
end
puts "next part"
for num in numbers
puts num
end
end
while_var(6)
It works when I type it line-by-line into irb, but not when I run the file with ruby. What gives? I'm getting this error:
Entry 0: i is now 0.1.rb:8:in `while_var': undefined method `push' for nil:NilClass (NoMethodError)
from 1.rb:23:in `<main>'
EDIT : Figured it out. All I had to do was change the "print" to "puts" for some reason.

Answer 1

Here is the fixed code :
def while_var(x)
i = 0
numbers = []
while i < x
print "Entry #{i}: i is now #{i}."
numbers.push(i)
puts "The numbers array is now #{numbers}."
i = i + 1
puts "variable i just increased by 1. It is now #{i}."
end
end
You did several mistakes :
You forgot to close the while loop.
You used #{x} which is not correct syntax for interpolation,But you don't need interpolation here. make it only x.
Inside the method two local variables i and numbers can't be used,as they have created at the top level. So you need to create those variables locally inside the method.

Answer 2

This code should work:
def while_var(x)
i = 0
numbers = []
while i < x
puts "Entry #{i}: i is now #{i}."
numbers.push(i)
puts "The numbers array is now #{numbers}."
i = i + 1
puts "variable i just increased by 1. It is now #{i}."
end
numbers
end
numbers = while_var(6)
puts "Want to see all the entries of the numbers array individually (i.e. not in array format)? Here you go!"
for num in numbers
puts num
end
I hope it does what you wanted to achieve.
You should use puts to print something to console. And move i and numbers variables to while_var method.