map (method)

map

• map<U>(): Opt<U>

• Applies function to the wrapped value and returns a new instance of Some.

  some(1).map(x => x + 1) // Some(2)
  none.map(x => x + 1) // None
  

  Type Parameters

  • U

  Returns Opt<U>

  See

  • onSome for imperative variant (for use with callback)
  • map