returns

Iteration

example

import {I} from 'ts-toolbelt'

type i = I.IterationOf<0> // ["-1", "1", "0", 0, "0"]

type next = I.Next<i>       // ["0", "2", "1", 1, "+"]
type prev = I.Prev<i>       // ["-2", "0", "-1", -1, "-"]

type nnext = I.Pos<next>    // +1
type nprev = I.Pos<prev>    // -1