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Add minor explanation about List are homogeneous #56

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Mar 9, 2019
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Add minor explanation about List are homogeneous #56

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10 changes: 8 additions & 2 deletions src/main/scala/scalatutorial/sections/StandardLibrary.scala
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Expand Up @@ -24,8 +24,14 @@ object StandardLibrary extends ScalaTutorialSection {
*
* - Lists are immutable --- the elements of a list cannot be changed,
* - Lists are recursive (as you will see in the next subsection),
* - Lists are ''homogeneous'': the elements of a list must all have the
* same type.
* - Lists are ''homogeneous'': A list is intended to be composed of elements that all have the same type.
*
* That's because when you create a `List` of elements with different types it will look for a common ancestor.
* The common ancestor for all types is `Any`
*
* {{{
* val heterogeneousList: List[Any] = List(1, "1", '1')
* }}}
*
* The type of a list with elements of type `T` is written `List[T]`:
*
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