If I’m using `when` as an expression, can there be...

# getting-started

[Ellen Spertus]

If I’m using when as an expression, can there be multiple statements in an arm?

[Daniel Rampelt]

Yes, you can use -> { ... } and put multiple lines and statements between the {}

[Ellen Spertus]

Thanks. How do I indicate the value of the arm? Does it just sit alone at the end? @Daniel Rampelt

[Daniel Rampelt]

For example

val result = when (x) {
  condition -> {
    statement
    another statement
    last statement is the value
  }
}

[Ellen Spertus]

Got it. Thanks!

[Daniel Rampelt]

yep the last statement in the block is the value

[Andy Gibel]

I always find this pretty unreadable. I try to make private functions unless it really doesn't make sense

[Hullaballoonatic]

I find it plenty readable enough if you format all arrows to be at the same indentation and potentially put an extra blank like after block branches

[Hullaballoonatic]

extra points if the only block branch is the final one

[Hullaballoonatic]

@Ellen Spertus last line is the return value in if/else and scoped functions (let, run, etc...) as well

[Ellen Spertus]

@Hullaballoonatic, got it, like in Scheme sequences.