JavaScript:实现获取素数的“双素数”twinPrime算法
import {
PrimeCheck } from 'PrimeCheck'
/**
* @function twinPrime
* Gets the 'twin prime' of a prime number.
*
* @param {Integer} n The number to find the twin prime of.
* @returns {Integer} Either the twin, or -1 if n or n + 2 is not prime.
*
*
* @example twinPrime(5) = 7
* @example twinPrime(4) = -1
*/
function twinPrime (