union

Jump to bottom

Subhajit Sahu edited this page Jun 11, 2020 · 13 revisions

Gives entries present in any object. 🏃 [:vhs:] 📦 🌔 📒

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

object.union(x, y, [fn]);
// x:  an object
// y:  another object
// fn: combine function (a, b)

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

var x = {a: 1, b: 2, c: 3};
var y = {b: 20, c: 30, d: 40};
object.union(x, y);
// { a: 1, b: 2, c: 3, d: 40 }

object.union(x, y, (a, b) => b);
// { a: 1, b: 20, c: 30, d: 40 }

references