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 = [['a', 1], ['b', 2], ['c', 3], ['d', 4], ['e', 5]];
var y = [['b', 2], ['d', 4]];
[...entries.difference(x, y)];
// [ [ 'a', 1 ], [ 'c', 3 ], [ 'e', 5 ] ]

var y = [['b', -2], ['d', -4]];
[...entries.difference(x, y)];
// [ [ 'a', 1 ], [ 'c', 3 ], [ 'e', 5 ] ]

references