swap

Exchanges two values. 🏃 📼 📦 🌔 📒

Alternatives: [swap], [swap$].

array.swap(x, i, j);
// x: an array
// i: an index
// j: another index

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

var x = [1, 2, 3, 4];
array.swap(x, 0, 1);
// [ 2, 1, 3, 4 ]

array.swap(x, 0, 3);
// [ 4, 2, 3, 1 ]

references

• List-Extra.swapAt: elm
• Collections.swap: Java
• pure-swap: @alferov