JSFiddle - React, Tailwind, and code Playground
JavaScript
function num (x,n){
var res = x;
for (y=1; y<n; y++){
res*= x;}
return res;}
alert(num (4,2));
function num (x,n){
var res = x;
for (y=1; y<n; y++){
res*= x;}
return res;}
alert(num (4,2));