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Size: a a a
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VC
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VC
IA
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АБ
def a(str: String): String = {
if (str == null)
""
str
}АБ
λ
AS
else, то будет как вы хотите.АБ
def a(str: String): String = {
if (str == null)
""
else
str
}
так?AS