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Subhajit Sahu edited this page Jun 11, 2020 · 12 revisions

Exchanges two values. 🏃 📼 📦 🌔 📒

Alternatives: [swap], [swap$].

object.swap(x, k, l);
// x: an object
// k: a key
// l: another key
const object = require('extra-object');

var x = {a: 1, b: 2, c: 3, d: 4};
object.swap(x, 'a', 'b');
// { a: 2, b: 1, c: 3, d: 4 }

object.swap(x, 'a', 'd');
// { a: 4, b: 2, c: 3, d: 1 }

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