Scala Filtering List of Case Class-CodePudding

Suppose you have a case class like below

case class Fruit(name: String, color: String, price: Double){
}

and you also have list of case class

val Fruits = List
(Fruit("Apple", "red", 3.00), Fruit ("Banana", "yellow", 4.99))

How do you filter based on name?

CodePudding user response：

Use the filter function to select the name attribute of the case class Fruit

scala> Fruits.filter(fruit => fruit.name == "Apple")
val res0: List[Fruit] = List(Fruit(Apple,red,3.0))

CodePudding user response：

List has a filter method.

case class Fruit(name: String, color: String, price: Double)

val Fruits = List(Fruit("Apple", "red", 3.00), Fruit ("Banana", "yellow", 4.99))

Fruits.filter(_.name == "Apple")