@extra-map/subsets v2.2.15

Lists all possible subsets. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Similar: subset, subsets, isSubset.

This is part of package extra-map.

map.subsets(x, [n]);
// x: a map
// n: number of entries (-1 => any)

const map = require("extra-map");

var x = new Map([["a", 1], ["b", 2]]);
[...map.subsets(x)];
// [
//   Map(0) {},
//   Map(1) { "a" => 1 },
//   Map(1) { "b" => 2 },
//   Map(2) { "a" => 1, "b" => 2 }
// ]

var x = new Map([["a", 1], ["b", 2], ["c", 3]]);
[...map.subsets(x)];
// [
//   Map(0) {},
//   Map(1) { "a" => 1 },
//   Map(1) { "b" => 2 },
//   Map(2) { "a" => 1, "b" => 2 },
//   Map(1) { "c" => 3 },
//   Map(2) { "a" => 1, "c" => 3 },
//   Map(2) { "b" => 2, "c" => 3 },
//   Map(3) { "a" => 1, "b" => 2, "c" => 3 }
// ]

References

• Data.List.subsequences: Haskell