How can I make an if statement that asks, if the number equals to 8 to the power of n (8^n)? [closed]

Question

I want to do an if statement that looks something like this:

(n is a natural number)

if (number == 8^n) {
  // Code...
}

Answer 1

Use Math.pow(x, y);

Example:

function check(number,n){
  let r = Math.pow(8, n);
  if (number==r)
    //Do something
}

Answer 2

var n=parseInt(prompt("Enter N:"));
var _number =parseInt(prompt("Enter Number:"));
if(!isNaN(n) && !isNaN(_number))
{
  if(_number == Math.pow(8, n))
    console.log("Equal");
  else
    console.log("Not Equal");
}else
   console.log("Invalid N / Number");

Or

var n=parseInt(prompt("Enter N:"));
var _number =parseInt(prompt("Enter Number:"));
if(isNaN(n))
   console.log("Invalid N");
else if(isNaN(_number))
   console.log("Invalid N");
else
{
  if(_number == Math.pow(8, n))
    console.log("Equal");
  else
    console.log("Not Equal");
}