Challenge 1: puts vs print vs p — Solution

name = "Philip"
numbers = [1, 2, 3]

puts name    # puts adds a trailing newline: Philip
print name   # print has no trailing newline: Philip (next output runs into it)
p name       # p shows the inspect form, quotes included: "Philip"

puts numbers # puts on an array prints each element on its own line: 1 / 2 / 3
print numbers # print on an array prints Ruby's literal form with no newline: [1, 2, 3]
p numbers    # p shows the array exactly as written: [1, 2, 3]

=begin
Output:
Philip
Philip"Philip"
1
2
3
[1, 2, 3][1, 2, 3]

Notes:
- puts is for "show a human something readable" — it adds the newline for you,
  and unpacks arrays one element per line.
- print is the same as puts but never adds a newline, which is why the next
  line of output runs straight into it (visible above where "Philip" and
  "Philip" collide, followed immediately by p's quoted output).
- p is for debugging: it shows the exact literal/inspect form of the value,
  including quotes around strings and brackets around arrays, so you can see
  the real shape of the data rather than a human-friendly rendering.
=end