``` listOf cat1 subcat1 cat1 subcat2 cat1 subcat3 cat2 subca kotlinlang #announcements

``` listOf("cat1-subcat1", "cat1-subcat2", "cat1-s...

hho

10/09/2018, 3:16 PM

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listOf("cat1-subcat1", "cat1-subcat2", "cat1-subcat3", "cat2-subcat1", "cat2-subcat2")
           .map { it.split("-")}
	       .groupBy({it[0]}, {it[1]})

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