Scala Check optional string is null or empty

Question

I am a newbie to Scala and I want to learn how can I add null and empty check on an optional string? val myString : Option[String] if (null != myString) { myString .filter(localStr=> StringUtils.isEmpty(localStr)) .foreach(localStr=> builder.queryParam("localStr", localStr)) } Above code works but I want to learn some elegant way of writing same check. Any help is highly appreciated, thanks JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

There is a quite convenient way using the Option constructor. scala> Option("Hello Worlds !") res: Option[String] = Some(Hello Worlds !) scala> Option(null) res: Option[Null] = None So if you would have list of Strings with possible null values you can use a combination of Option and flatten: scala> List("Speak", "friend", null, "and", null ,"enter").map(s => Option(s)) .flatten res: List[String] = List(Speak, friend, and, enter)