Type Alias Range<start, stop, result, padding, current>

Range: current extends stop
    ? current extends start
        ? [current]
        : result extends [] ? [] : [...result, current]
    : current extends start
        ? Range<start, stop, [current], padding>
        : result extends []
            ? Range<start, stop, [], [...padding, 0]>
            : Range<start, stop, [...result, current], padding>

Creates range between two positive numbers using tail recursion.

Type Parameters

start extends number
Number to start range
stop extends number
Number to end range
result extends number[] = []
padding extends 0[] = []
current extends number = [...padding, ...result]["length"] & number

Returns

Array with inclusive range from start to stop

Example

type Result = Range<1, 3>
//   ^? type Result = [1, 2, 3]