kotlin-stdlib/kotlin/to

to

infix fun <A, B> A.to(that: B): Pair<A, B>(source)

Creates a tuple of type Pair from this and that.

This can be useful for creating Map literals with less noise, for example:

Since Kotlin

1.0

Samples

import kotlin.test.*
import java.util.*

fun main() { 
   //sampleStart 
   val map = mapOf(1 to "x", 2 to "y", -1 to "zz")
println(map) // {1=x, 2=y, -1=zz} 
   //sampleEnd
}