@extra-lists/intersection v2.2.10

Gives entries present in both lists. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:

Similar: union, intersection, difference, symmetricDifference, isDisjoint.

This is part of package extra-lists.

lists.intersection(x, y, [fc]);
// x:  lists
// y:  another lists
// fc: combine function (a, b)

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

var x = [['a', 'b', 'c', 'd'], [1, 2, 3, 4]];
var y = [['b', 'c', 'e'], [20, 30, 50]];
lists.intersection(x, y).map(c => [...c]);
// [ [ 'b', 'c' ], [ 2, 3 ] ]

lists.intersection(x, y, (a, b) => b).map(c => [...c]);
// [ [ 'b', 'c' ], [ 20, 30 ] ]

References

• Data.Set.intersection: Haskell
• Set.intersection: Python
• _.intersection: lodash
• _.intersectionBy: lodash
• _.intersectionWith: lodash
• Array.intersect: sugarjs