Scala Programming Projects

Implicits

As its name indicates, the Scala keyword implicit can be used to implicitly add some extra code to the compiler. For instance, an implicit parameter in a function definition allows you to omit this parameter when you call the function. As a result, you do not have to pass this parameter explicitly.

There are different kinds of implicit in Scala that we will cover in this section:

• An implicit parameter is declared in a function definition
• An implicit value is passed as an argument to a function that has an implicit parameter
• An implicit conversion converts one type to another type

This is an extremely powerful feature that can feel a bit like magic sometimes. In this section, we will see how it can help writing more concise code ...