how to swap two variables in javascript code example

Example 1: swap two variables javascript

var a = 1,
    b = 2;
b = [a, a = b][0];

Example 2: javascript swap two variables

[a, b] = [b, a];

Example 3: javascript swap variables

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

Example 4: 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);