.swap 2 numbers in javascript code example

Example 1: javascript swap variables

var a = 5;
var b = 3;
[a, b] = [b, a];

Example 2: how do you swap the vaRIables js

let a = "red";
let b = "blue";
let c = a; // red
a = b; //over-rides to blue
b = c;

console.log(a);
console.log(b);