13.8 Range Operator

Kotlin includes a useful operator that allows a range of values to be declared. As will be seen in later chapters, this operator is invaluable when working with looping in program logic.

The syntax for the range operator is as follows:

x..y

This operator represents the range of numbers starting at x and ending at y where both x and y are included within the range (referred to as a closed range). The range operator 5..8, for example, specifies the numbers 5, 6, 7 and 8.