Android Development with Kotlin

Processing data structures using LINQ style

We've already mentioned that Kotlin allows LINQ-style processing. The last lambda in an argument convention is another component that aids its readability. For example, look at the following code:

    strings.filter { it.length == 5 }.map { it.toUpperCase() } 

It is more readable than notation that does not use the last lambda in an argument convention:

    strings.({ s -> s.length == 5 }).map({ s -> s.toUpperCase() }) 

Again, this processing will be discussed in detail later, in Chapter 7, Extension Functions and Properties, but for now, we have learned about two features that improve its readability (the last lambda in an argument convention and the implicit name of a single parameter).

The last lambda ...