@extra-set/powerset v2.0.14

Lists all subsets of a set.

This is part of package extra-set.

set.powerset(s);
// s: a set

const set = require('extra-set');

new Set(set.powerset([1, 2]));
// Set(4) { Set(0) {}, Set(1) { 1 }, Set(1) { 2 }, Set(2) { 1, 2 } }

new Set(set.powerset([1, 2, 3]));
// Set(8) {
//   Set(0) {},
//   Set(1) { 1 },
//   Set(1) { 2 },
//   Set(2) { 1, 2 },
//   Set(1) { 3 },
//   Set(2) { 1, 3 },
//   Set(2) { 2, 3 },
//   Set(3) { 1, 2, 3 }
// }

new Set(set.powerset([1, 2, 3], [4, 5]));
// Set(1) { Set(0) {} }

references

• @thi.ng/associative: @thi-ng
• zet: @terkelg
• set-utils: @torbs
• set-tools: @ryanmcdermott
• Python Sets: w3schools
• Data.Set: Haskell
• Set: MDN web docs