Decimal and Binary Palindromes

A number/string is a palindrome if the digits/characters are the same when read both forward and backward. Examples include "racecar" and 12321. Given a positive number n, check if n or the binary representation of n is palindromic. Return the following:

• "Decimal only." if only n is a palindrome.
• "Binary only." if only the binary representation of n is a palindrome.
• "Decimal and binary." if both are palindromes.
• "Neither!" if neither are palindromes.

Examples

palindromeType(1306031) ➞ "Decimal only."
// decimal = 1306031
// binary  = "100111110110110101111"

palindromeType(427787) ➞ "Binary only."
// decimal = 427787
// binary  = "1101000011100001011"

palindromeType(313) ➞ "Decimal and binary."
// decimal = 313
// binary  = 100111001

palindromeType(934) ➞ "Neither!"
// decimal = 934
// binary  = "1110100110"

Notes