HORIZON PROJECT

var arrayPush = require('./_arrayPush'),

    baseFlatten = require('./_baseFlatten'),

    copyArray = require('./_copyArray'),

    isArray = require('./isArray');

/**

 * Creates a new array concatenating `array` with any additional arrays

 * and/or values.

 *

 * @static

 * @memberOf _

 * @since 4.0.0

 * @category Array

 * @param {Array} array The array to concatenate.

 * @param {...*} [values] The values to concatenate.

 * @returns {Array} Returns the new concatenated array.

 * @example

 *

 * var array = [1];

 * var other = _.concat(array, 2, [3], [[4]]);

 *

 * console.log(other);

 * // => [1, 2, 3, [4]]

 *

 * console.log(array);

 * // => [1]

 */

function concat() {

  var length = arguments.length;

  if (!length) {

    return [];

  }

  var args = Array(length - 1),

      array = arguments[0],

      index = length;

  while (index--) {

    args[index - 1] = arguments[index];

  }

  return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));

}

module.exports = concat;