randomItem 1.0.0

/**
 * Picks one item from an array at random.
 * @template T
 * @param {ArrayLike.<T>} arr
 *    The array, or array-like object (such as a string), to pick from.
 * @param {boolean} [useCrypto=false]
 *    If `true`, uses `crypto.getRandomValues()` instead of `Math.random()`, so
 *    the pick can't be predicted.
 * @returns {T}
 *    One of the items in `arr`, each as likely as the others.
 * @throws {RangeError}
 *    If `arr` is empty.
 *
 * @example <caption>Picking a color</caption>
 * randomItem(['red', 'green', 'blue']);
 * // → 'red', 'green' or 'blue'
 *
 * @example <caption>Picking a character from a string</caption>
 * randomItem('aeiou');
 * // → one of the vowels, like 'e'
 */
function randomItem(arr, useCrypto) {
  return arr[random(0, arr.length, { useCrypto, returnInt: true })];
}