scala - Specify default value for collections -

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in scala, there idiomatic way specify default value collections when it's empty?

for options, use .getorelse. i'm thinking below:

seq().ifempty(seq("aa", "bb")) // seq("aa", "bb") seq("some", "value").ifempty(seq("aa", "bb")) // seq("some", "value")

the cleanest way scala (without scalaz) seems be:

option(list).filter(_.nonempty).getorelse(list(1,2,3))

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