scala：以下两个是否相同

Question

Code piece 1

maps foreach { case (k, v) =>
  // do something
}

code piece 2:

maps foreach { 
  case (k, v) => {
    // do something
  }
}

I am new to scala. Just wonder whether the above two pieces of codes are the same or not? which one is better?

Thanks

Answer 1

Yes, those two pieces of code are same.

But unfortunately none of them takes into account the recommendations of the Scala style guide .

1. Omitting dots and using spaces is not recommended .

2. Always omit braces in case clauses .

3. case may be present on same line or on the next line: it depends on the contents of // do something .

So the original code should be formatted as

maps.foreach {
  case (k, v) => // do something
}