Euler 36

gistfile1.txt

#!/usr/local/bin/node

function reverse(s){
    return s.split("").reverse().join("");
}

function ispali(a)
	{
	a = a.toString();
	for (i=0;i<=a.length-1;i++)
		{
		if (a.length%2 == 0)
			{
			b = a.slice(0, a.length/2);
			c = a.slice(a.length/2);
			c = reverse(c);
			if (b==c)
				{
				return true;
				}
			}
		else
			{
			e = a.slice(0, (a.length/2));
			f = a.slice((a.length+1)/2);
			f = reverse(f);
			if (e==f)
				{
				return true;
				}
			}
		}
	}	

sum = 0;
for (a=0;a<=1000000;a++)
	{
// is a a palindrome?
			
	if (ispali(a))
		{
		binary_a = Number(a).toString(2);
		binary_a = binary_a.toString();
		if (ispali(binary_a))
			{
			console.log(a,binary_a, "is palindrome in both base 2 and 10");
			sum = sum + a;
			}
		}
	}

console.log("sum is",sum);