lodash/every.js

/**
 * Checks if `predicate` returns truthy for **all** elements of `array`.
 * Iteration is stopped once `predicate` returns falsey. The predicate is
 * invoked with three arguments: (value, index, array).
 *
 * **Note:** This method returns `true` for
 * [empty arrays](https://en.wikipedia.org/wiki/Empty_set) because
 * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
 * elements of empty arrays.
 *
 * @since 5.0.0
 * @category Array
 * @param {Array} array The array to iterate over.
 * @param {Function} predicate The function invoked per iteration.
 * @returns {boolean} Returns `true` if all elements pass the predicate check,
 *  else `false`.
 * @example
 *
 * every([true, 1, null, 'yes'], Boolean)
 * // => false
 */
function every(array, predicate) {
  let index = -1
  const length = array == null ? 0 : array.length

  while (++index < length) {
    if (!predicate(array[index], index, array)) {
      return false
    }
  }
  return true
}

export default every