2.2.10 • Published 3 years ago
@extra-lists/subsets v2.2.10
Lists all possible subsets. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:
Similar: subset, subsets, isSubset.
This is part of package extra-lists.
lists.subsets(x, [n]);
// x: lists
// n: number of entries (-1 => any)const lists = require('extra-lists');
var x = [['a', 'b'], [1, 2]];
[...lists.subsets(x)].map(a => [[...a[0]], [...a[1]]]);
// [
// [ [], [] ],
// [ [ 'a' ], [ 1 ] ],
// [ [ 'b' ], [ 2 ] ],
// [ [ 'a', 'b' ], [ 1, 2 ] ]
// ]
var x = [['a', 'b', 'c'], [1, 2, 3]];
[...lists.subsets(x)].map(a => [[...a[0]], [...a[1]]]);
// [
// [ [], [] ],
// [ [ 'a' ], [ 1 ] ],
// [ [ 'b' ], [ 2 ] ],
// [ [ 'a', 'b' ], [ 1, 2 ] ],
// [ [ 'c' ], [ 3 ] ],
// [ [ 'a', 'c' ], [ 1, 3 ] ],
// [ [ 'b', 'c' ], [ 2, 3 ] ],
// [ [ 'a', 'b', 'c' ], [ 1, 2, 3 ] ]
// ]