How to check if a map contain a empty string value in scala? -

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i have newbie question.

we can use contains check if map contain specified key, as:

val map = map("a"->"1", "b"->"") map.contains("a")

but now, want check if map contains empty string, there method use?

try

map.values.exists(_ == "")

edit: think above clearest, can't resist showing 2 others.

map.exists(_._2 == "")

is more compact, have remember _2 value when iterate through map.

map.values.exists(""==)

is alternative form of original, instead of explicitly comparing argument _ == "", supply equality function "".equals _ or ""== short. (two ways of looking @ same thing--is empty string supplying equals method testing, or closure testing elements against empty string? think latter (the original) considerably clearer.)


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