Problem Statement

List the conditional structures offered by a programming language. See Wikipedia: conditionals for descriptions. Common conditional structures include if-then-else and switch. Less common are arithmetic if, ternary operator and Hash-based conditionals. Arithmetic if allows tight control over computed gotos, which optimizers have a hard time to figure out.

Let's start with the solution:

if n == 1
  console.log "one"
else if n == 2
  console.log "two"
else
  console.log "other"


n = 1

switch n
  when 1
    console.log "one"
  when 2, 3
    console.log "two or three"
  else
    console.log "other"


s = if condition then "yup" else "nope"

# alternate form
s = \
  if condition
  then "yup"
  else "nope"