define(['../internal/baseGet', '../internal/baseSlice', '../lang/isArguments', '../lang/isArray', '../internal/isIndex', '../internal/isKey', '../internal/isLength', '../array/last', '../internal/toPath'], function(baseGet, baseSlice, isArguments, isArray, isIndex, isKey, isLength, last, toPath) { /** Used for native method references. */ var objectProto = Object.prototype; /** Used to check objects for own properties. */ var hasOwnProperty = objectProto.hasOwnProperty; /** * Checks if `path` is a direct property. * * @static * @memberOf _ * @category Object * @param {Object} object The object to query. * @param {Array|string} path The path to check. * @returns {boolean} Returns `true` if `path` is a direct property, else `false`. * @example * * var object = { 'a': { 'b': { 'c': 3 } } }; * * _.has(object, 'a'); * // => true * * _.has(object, 'a.b.c'); * // => true * * _.has(object, ['a', 'b', 'c']); * // => true */ function has(object, path) { if (object == null) { return false; } var result = hasOwnProperty.call(object, path); if (!result && !isKey(path)) { path = toPath(path); object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1)); if (object == null) { return false; } path = last(path); result = hasOwnProperty.call(object, path); } return result || (isLength(object.length) && isIndex(path, object.length) && (isArray(object) || isArguments(object))); } return has; });