1. Start Here
   1. Introduction
2. Guidelines
   1. White Space
   2. Indentation
   3. Line Wrapping
   4. Methods & Side Effects
   5. Code Blocks
   6. Anonymous Code Blocks
   7. Dots versus Spaces
   8. Files
3. Reference
   1. Scala
   2. Bizo
   3. Official Scala Style Guide
4. 

Code Blocks [Edit]

Opening curly braces ({) should be on the same line

… as the declaration they represent.

  // right
  def foo = {
    ...
  }

Use braces and indented code block with if, while and for.

  // wrong
  if (condition) log.info("something interesting happened")

  // wrong
  if (condition)
    log.info("something interesting happened")

  // wrong
  if (condition)
    log.info("something interesting happened")
  else
    log.info("nothing happened, really")

  // right
  if (condition) {
    log.info("something interesting happened")
  }

  // right
  if (condition) {
    log.info("something interesting happened")
  } else {
    log.info("nothing happened, really")
  }

One notable exception to this rule is when an if is used as substitute for the ternary operator (?) — which is not available in Scala — and when the entire expression fits in a single line,

  // right
  val level = if (state == "dev") debugLevel else warnLevel