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I can't seem to find what it does anywhere. For example say you have a method such as
def SomeFunction(a: String): String ={ ??? } What do the triple question marks signify?
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it has a return type of Nothing which is a sub-type of every type and can therefore be used in place of any return value.
A lot of question marks in a text can define the feeling of confusion and anger. A single question mark is for asking a question; multiple question marks, or multiple question marks along with exclamation points are for expressing confusion. It is outright rude and should never be used.
In a URL, the query starts with a question mark - the question mark is used as a separator, and is not part of the query string. If you also include a question mark in the query string, this would be treated as a literal question mark (i.e. it has no significance beyond that of a regular character).
??? is defined in Predef and simply throws a NotImplementedError:
def ??? : Nothing = throw new NotImplementedError it has a return type of Nothing which is a sub-type of every type and can therefore be used in place of any return value.
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