Update 7-reverse-integer.js

add another

Author: Tunakite03

7-reverse-integer.js

@@ -40,3 +40,22 @@ const reverse = function(num) {
  if (negative) return result * -1;
  return result;
 };
+
+// another 
+
+/**
+ * @param {number} n
+ * @return {number}
+ */
+const reverse = (n) => {
+ if (typeof n !== 'number') {
+ throw new Error('n must be a number');
+ }
+ let sign = Math.sign(n);
+ n = Math.abs(n);
+ if (n < 0) {
+ return -reverse(-n);
+ }
+ let reversed = Number([...n.toString()].reverse().join(''));
+ return sign * reversed;
+}