Range

A Range represents a consecutive range of integers. A range can be created by using the concatenation operator .. on two integers:

let myRange = 1..10
let myOtherRange = (2 - 1)..(5 + 5);

This will create a range of consecutive numbers ranging from 0 to 10 (excluded).

Range values have a native Iterator that can be used to access the numbers in the range:

let myRange = 1..10;
let myRangeIt = >myRange;

io.print((*myRangeIt).value); // 1
io.print((*myRangeIt).value); // 2
io.print((*myRangeIt).value); // 3

You can use a for in loop to iterate over a Range to get a classic for loop:

for (let i in 0..5) {
    io.print(i);
}

Outputs:

Numbers in a Range value can also be in descending order:

for (let i in 5..0) {
    io.print(i);
}

Outputs: