programming-examples/js/Recursion/Write a JavaScript program to compute the exponent of a number..js

var exponent = function(a, n)   
{  
   if (n === 0)   
   {  
    return 1;  
    }  
  else   
  {  
    return a * exponent(a, n-1);  
  }  
};  
  
console.log(exponent(4, 2));