Implicit Parameters
Below is the Scala program to implement implicit parameters:
// Define a case class
case class Config(server: String, port: Int)
// Define an implicit value
implicit val defaultConfig: Config = Config("localhost", 8080)
// Define a method that requires an implicit parameter
def connectToServer(implicit config: Config): Unit = {
println(s"Connecting to ${config.server}:${config.port}")
}
// Call the method without explicitly passing the implicit parameter
def connectImplicitly(): Unit = {
connectToServer // Here, implicitly is used to access the implicit value
}
// Call the method
connectImplicitly()
Output:
Implicit Parameters
What is the Scala Identifier “implicitly”?
The implicit identifier in Scala is an effective tool for retrieving implicit values that are included in the current scope. When implicit arguments are anticipated, implicit values are those that are indicated with the implicit keyword and may be provided to methods or constructors automatically. Gaining an understanding of implicit is essential to efficiently use implicit values in Scala.
Table of Content
- Implicit Parameters
- Implicit Conversions
- Conclusion