difference

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

Gives entries not present in another. 🏃 📼 📦 🌔 📒

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

entries.difference(x, y);
// x: entries
// y: another entries

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

var x = new Map([['a', 1], ['b', 2], ['c', 3], ['d', 4], ['e', 5]]);
var y = new Map([['b', 2], ['d', 4]]);
map.difference(x, y);
// Map(3) { 'a' => 1, 'c' => 3, 'e' => 5 }

var y = new Map([['b', -2], ['d', -4]]);
map.difference(x, y);
// Map(3) { 'a' => 1, 'c' => 3, 'e' => 5 }

references