azure-docs.sv-se/apache-spark-troubleshoot-outofmemory.md

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This means that it is either a Some [T] or a none object. One place we get an Option value is through the get () method for a Map. Let’s Learn Scala Map with Examples Quickly & Effectively Option.getOrElse/map is a more idiomatic Scala code because Option.fold was only introduced in Scala 2.10. Fold on Option is not obvious to most developers. Option.fold is not readable. Reverses the order of Some vs None.

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val o1 = Option("Hi") val o2: Option[String] = Option(null) println(o1.getOrElse(() => "Else")) println(o2.getOrElse(() => "Else")) I get the output. Hi The Scala API says about getOrElse(): getOrElse returns the value associated to the key k in this Map. If this Map doesn’t contain the key k then this function returns the result of the computation v. A method that should be called from every well-designed equals method that is open to be overridden in a subclass. See Programming in Scala, Chapter 28 for discussion and design. that. the value being probed for possible equality.

getOrElse() Method: This method is utilized in returning either a value if it is present or a default value when its not present. Here, For Some class a value is returned and for None class a default value is returned.

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2018-03-16 · You should see the following output when you run your Scala application in IntelliJ: Step 2: Call function with Option return type using getOrElse Today's coupon code = COUPON_1234 NOTE: When using getOrElse() function, you need to also provide a default value which in our case will be "No Coupon's Today". 3. Visual Scala Reference This guide collects some of the most common functions of the Scala Programming Language and explain them conceptual and graphically in a simple way.

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Option.getOrElse(Option.scala:120) at com.cloudera.livy.sessions. Option.getOrElse(Option.scala:121) at org.apache.spark.sql.execution.streaming.StreamExecution.(StreamExecution.scala:114) at  getOrElse (Option.scala: 121) vid org.graphframes.lib.ConnectedComponents $ .org $ graphframes $ lib $ ConnectedComponents $$ run  i Adobe Experience Platform Data Science Workspace, med implementerbara mallar i PySpark och Spark (Scala).
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Don't convert option to sequence manually. // Before option.map(Seq(_)).getOrElse(  MapLike$class getOrElse 128 scala.collection.AbstractMap getOrElse 59 org.dbpedia.extraction.mappings.MappingsLoader$ loadOntologyValue 267  __ *\ ** ______ ___ / / ___ Scala API ** ** / __/ __// _ | / / / _ | (c) 2002-2009, def toString() = "DTD [\n%s%s]".format( Option(externalID) getOrElse "", decls.

Hi The Scala API says about getOrElse(): getOrElse returns the value associated to the key k in this Map. If this Map doesn’t contain the key k then this function returns the result of the computation v. A method that should be called from every well-designed equals method that is open to be overridden in a subclass.
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Active 4 years, 5 months ago. Viewed 8k times 3. val label = Try 2016-06-04 · Another approach is to use the getOrElse method when attempting to find a value. It returns the default value you specify if the key isn’t found: scala> val s = states.getOrElse("FOO", "No such state") s: String = No such state.