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swap$
Subhajit Sahu edited this page May 19, 2020
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23 revisions
Exchanges two values. 🏃 📼 📦 🌔 📒
array.swap$(x, i, j);
// x: an array (updated)
// i: an index
// j: another index
// --> x
const array = require('extra-array');
var x = [1, 2, 3, 4];
array.swap$(x, 0, 1);
// [ 2, 1, 3, 4 ]
x;
// [ 2, 1, 3, 4 ]
var x = [1, 2, 3, 4];
array.swap$(x, 0, 3);
// [ 4, 2, 3, 1 ]