Print numbers in a range

Question

I am trying to print all numbers between 1 and 50, using the following code:

[1..50].each{|n|   puts n}

but the console print

 [1..50] 

I want to print something like this 1 2 3 4 ... 50

Answer 1

Try the following code:

(1..50).each { |n| puts n }

The problem is that you're using [] delimiter instead of () one.

Answer 2

You can use [1..10] with a minor tweak:

[*1..10].each{ |i| p i }

outputs:

1
2
3
4
5
6
7
8
9
10

The * (AKA "splat") "explodes" the range into its components, which are then used to populate the array. It's similar to writing (1..10).to_a.

You can also do:

puts [*1..10]

to print the same thing.

So, try:

[*1..10].join(' ') # => "1 2 3 4 5 6 7 8 9 10"

or:

[*1..10] * ' ' # => "1 2 3 4 5 6 7 8 9 10"

To get the output you want.