contains.js 407 Bytes
define(['./_isArrayLike', './values', './indexOf'], function (_isArrayLike, values, indexOf) {

  // Determine if the array or object contains a given item (using `===`).
  function contains(obj, item, fromIndex, guard) {
    if (!_isArrayLike(obj)) obj = values(obj);
    if (typeof fromIndex != 'number' || guard) fromIndex = 0;
    return indexOf(obj, item, fromIndex) >= 0;
  }

  return contains;

});