ahafidi

const reverseString = str => [...str].reverse().join('');

ahafidi

const palindrome = str => {
  const s = str.toLowerCase().replace(/[\W_]/g, '');
  return s === s.split('').reverse().join('');
};

ahafidi

#include <iostream>
#include <cstddef>

template<typename T>
struct IsArray
{
  static constexpr bool value = false;
};

template<typename T>

ahafidi

#include <iostream>

template<int n>
struct facto
{
  static constexpr unsigned int value = n * facto<n - 1>::value;
};

template<>
struct facto<0>

ahafidi

primes = filterPrime [2..] 
  where filterPrime (p:xs) = 
          p : filterPrime [x | x <- xs, x `mod` p /= 0]