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| import castPath from './.internal/castPath.js' | |
| import isArguments from './isArguments.js' | |
| import isIndex from './.internal/isIndex.js' | |
| import isLength from './isLength.js' | |
| import toKey from './.internal/toKey.js' | |
| /** Used to check objects for own properties. */ | |
| const hasOwnProperty = Object.prototype.hasOwnProperty | |
| /** | |
| * Checks if `path` is a direct property of `object`. | |
| * | |
| * @since 5.0.0 | |
| * @category Object | |
| * @param {Object} object The object to query. | |
| * @param {Array|string} path The path to check. | |
| * @returns {boolean} Returns `true` if `path` exists, else `false`. | |
| * @see has, hasIn, hasPathIn | |
| * @example | |
| * | |
| * const object = { 'a': { 'b': 2 } } | |
| * const other = create({ 'a': create({ 'b': 2 }) }) | |
| * | |
| * hasPath(object, 'a.b') | |
| * // => true | |
| * | |
| * hasPath(object, ['a', 'b']) | |
| * // => true | |
| */ | |
| function hasPath(object, path) { | |
| path = castPath(path, object) | |
| let index = -1 | |
| let { length } = path | |
| let result = false | |
| let key | |
| while (++index < length) { | |
| key = toKey(path[index]) | |
| if (!(result = object != null && hasOwnProperty.call(object, key))) { | |
| break | |
| } | |
| object = object[key] | |
| } | |
| if (result || ++index != length) { | |
| return result | |
| } | |
| length = object == null ? 0 : object.length | |
| return !!length && isLength(length) && isIndex(key, length) && | |
| (Array.isArray(object) || isArguments(object)) | |
| } | |
| export default hasPath |