/**
 * Iterates over the given array values to find an element which matches the given needle.
 *
 * @param haystack The array to iterate over
 * @param needle The pattern to look for
 * @return {boolean} true if a matching element was found, false otherwise.
 */
const arrayIncludesRegEx = (haystack, needle) => {
  // Validate input parameters
  if (typeof haystack !== 'object' || typeof haystack.length !== 'number') {
    throw new TypeError('Expected parameter haystack to be an Array');
  } else if (typeof needle !== 'object' || typeof needle.test !== 'function') {
    throw new TypeError('Expected parameter needle to be an regular expression');
  } else {
    // Iterate over array to find an element which matches the given needle
    const index = haystack.findIndex((element) => {
        return needle.test(element);
    });

    // Return index is not lesser than 0 which means, that a matching value was found
    return index > -1;
  }
};

// Example usage:
const arr = [ 'apple', 'orange', 'banana' ];

arrayIncludesRegEx(arr, /(pea)/i); // return false
arrayIncludesRegEx(arr, /(nana)/i); // return true