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Subhajit Sahu edited this page Dec 2, 2022 · 16 revisions

List all possible subsets.

Similar: subset, subsets, isSubset.


function subsets(x, n)
// x: a set
// n: number of values [-1 ⇒ any]
const set = require('extra-set');

var x = new Set([1, 2]);
[...set.subsets(x)];
// → [ Set(0) {}, Set(1) { 1 }, Set(1) { 2 }, Set(2) { 1, 2 } ]

var x = new Set([1, 2, 3]);
[...set.subsets(x)];
// → [
// →   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 }
// → ]


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