Reverse decimal digits in javascript

Question

How do I reverse the digits of a number using bitwise?

input:

x = 123; 

output:

x = 321; 

Answer 1

Reversing The Positive/ Negative Integer Number

function reverseInt(n) {
 return parseInt(n.toString().split('').reverse().join()) * Math.sign(n)
}

If n is -5, then Math.sign(n)==> will return -1

If n is 5, then Math.sign(n)==> will return 1