Swap values between two variables

Swapping variables is simple enough, but can it be any simpler?

Consider the below code -

let x = 1;
let y = 3;

To swap values -

let z = x;

x = y;
y = z;
console.log(x, y);
// 3 1

Applying our earlier knowledge about destructuring objects(/destructuring-assignments-in-javascript/), we can instead do -

let x = 1;
let y = 3;

[x, y] = [y, x];
console.log(x, y);
// 3 1

Beautiful, isn’t it?