HORIZON PROJECT

var baseIndexOf = require('./_baseIndexOf'),

    isArrayLike = require('./isArrayLike'),

    isString = require('./isString'),

    toInteger = require('./toInteger'),

    values = require('./values');

/* Built-in method references for those with the same name as other `lodash` methods. */

var nativeMax = Math.max;

/**

 * Checks if `value` is in `collection`. If `collection` is a string, it's

 * checked for a substring of `value`, otherwise

 * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)

 * is used for equality comparisons. If `fromIndex` is negative, it's used as

 * the offset from the end of `collection`.

 *

 * @static

 * @memberOf _

 * @since 0.1.0

 * @category Collection

 * @param {Array|Object|string} collection The collection to inspect.

 * @param {*} value The value to search for.

 * @param {number} [fromIndex=0] The index to search from.

 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.

 * @returns {boolean} Returns `true` if `value` is found, else `false`.

 * @example

 *

 * _.includes([1, 2, 3], 1);

 * // => true

 *

 * _.includes([1, 2, 3], 1, 2);

 * // => false

 *

 * _.includes({ 'a': 1, 'b': 2 }, 1);

 * // => true

 *

 * _.includes('abcd', 'bc');

 * // => true

 */

function includes(collection, value, fromIndex, guard) {

  collection = isArrayLike(collection) ? collection : values(collection);

  fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;

  var length = collection.length;

  if (fromIndex < 0) {

    fromIndex = nativeMax(length + fromIndex, 0);

  }

  return isString(collection)

    ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)

    : (!!length && baseIndexOf(collection, value, fromIndex) > -1);

}

module.exports = includes;