Question

How to reverse a number in JavaScript

Answer 1

function reverseNumber(n) {
    let reverse = 0;
   
    while (n != 0) {
        let reminder = n % 10;
        reverse = reverse * 10 + reminder;
        n = Math.trunc(n / 10);  
    }
    return reverse;
}
   
const n = 90812;
const reverse_n = reverseNumber(n);
   
console.log(reverseNumber(n));
   
   
   
   
/*
run:
   
21809
   
*/

 

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