The choose list.
import { fromArray, fromString, choices, range, toArray } from "./list.ts";
import { assertEquals } from "../deps.ts";
const choice = choices(fromArray([range(0, 3), range(3, 6)]));
const sequences = toArray(choice).map((seq) => toArray(seq));
assertEquals(sequences, [
[0, 3],
[0, 4],
[1, 3],
[0, 5],
[1, 4],
[2, 3],
[1, 5],
[2, 4],
[2, 5],
]);
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Creates a list such that whenever
v_ihas finite index in listifor eachi,[v_1, v_2, ..., v_n]has finite index in the output list. It is different to cartesian product, so the order of elements are not sorted.