intersection

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Subhajit Sahu edited this page Jun 17, 2020 · 15 revisions

Gives entries present in both entries. 🏃 📼 📦 🌔 📒

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

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

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

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

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

references