/**
 * lodash 3.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var baseSlice = require('lodash._baseslice'),
    isIterateeCall = require('lodash._isiterateecall');

/**
 * Creates a slice of `array` with `n` elements dropped from the end.
 *
 * @static
 * @memberOf _
 * @category Array
 * @param {Array} array The array to query.
 * @param {number} [n=1] The number of elements to drop.
 * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * _.dropRight([1, 2, 3]);
 * // => [1, 2]
 *
 * _.dropRight([1, 2, 3], 2);
 * // => [1]
 *
 * _.dropRight([1, 2, 3], 5);
 * // => []
 *
 * _.dropRight([1, 2, 3], 0);
 * // => [1, 2, 3]
 */
function dropRight(array, n, guard) {
  var length = array ? array.length : 0;
  if (!length) {
    return [];
  }
  if (guard ? isIterateeCall(array, n, guard) : n == null) {
    n = 1;
  }
  n = length - (+n || 0);
  return baseSlice(array, 0, n < 0 ? 0 : n);
}

/**
 * Gets all but the last element of `array`.
 *
 * @static
 * @memberOf _
 * @category Array
 * @param {Array} array The array to query.
 * @returns {Array} Returns the slice of `array`.
 * @example
 *
 * _.initial([1, 2, 3]);
 * // => [1, 2]
 */
function initial(array) {
  return dropRight(array, 1);
}

module.exports = initial;