Conditionals

Default Values

Consider ternary operator 'or' instead of nil checks to improve readability.

BAD:

if name then
    return name
else
    return "John Doe"
end

GOOD:

return name or "John Doe"

When returning or setting a variable to the value of the conditional statement itself, don't use an if else block.

BAD:

if name == "mark" or name == "stacy" then
   return true
else
   return false
end

GOOD:

return name == "mark" or name == "stacy"

This makes the code easier to read.

BAD:

if not isHappy then
  return "sad"
else
  return "happy"
end

GOOD:

if isHappy then
  return "happy"
else
  return "sad"
end