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Update Maps.scala - corrections to unary '-' using tuple which is deprecated in Scala 2.13.0 #145

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Update Maps.scala - corrections to unary '-' using tuple which is deprecated in Scala 2.13.0 #145

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3 changes: 2 additions & 1 deletion src/main/scala/stdlib/Maps.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -127,11 +127,12 @@ object Maps extends FlatSpec with Matchers with org.scalaexercises.definitions.S
}

/** Map elements can be removed with a tuple:
* '-' Operator is deprecated on MapOps from scala 2.13.0
*/
def removedWithTupleMaps(res0: Boolean, res1: Boolean, res2: Boolean, res3: Int, res4: Int) {
val myMap =
Map("MI" → "Michigan", "OH" → "Ohio", "WI" → "Wisconsin", "IA" → "Iowa")
val aNewMap = myMap - ("MI", "WI") // Notice: single '-' operator for tuples
val aNewMap = myMap - ("MI", "WI") // Notice: single '-' operator for tuples; works, but deprecated starting scala 2.13.0

aNewMap.contains("MI") should be(res0)
myMap.contains("MI") should be(res1)
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