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I have this as a return type in Scala
Map[String, Seq[Map[String, Seq[MyClass]]]]
I have to use this in multiple places in my code, is there a way to assign this to a constant of sorts and use the constant instead of explicitly stating it?
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A Scala function definition has the following form −. Syntax def functionName ([list of parameters]) : [return type] = { function body return [expr] } Here, return type could be any valid Scala data type and list of parameters will be a list of
A Scala function declaration has the following form − def functionName ([list of parameters]) : [return type] Methods are implicitly declared abstract if you don’t use the equals sign and the method body.
But in Scala, the return keyword is optional, as the Scala compiler treats the value of the last execution within a function as the return value so that we can rewrite our function: Now, why are we discouraged from using the return keyword in Scala if it behaves the same way as in Java and has the same semantics?
We can also return a complete container such as an array, list, or vector. The function returns a vector after looping and yielding in the code below. In Scala, the final expression is assumed to be the return value if there is no return value. If the last expression is what you want to return, you can skip the return keyword.
Yes, you can define a type alias with type Foo = Map[...].
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