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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' | |
/** | |
* 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 hasPath | |
* @example | |
* | |
* const object = { 'a': { 'b': 2 } } | |
* const other = create({ 'a': create({ 'b': 2 }) }) | |
* | |
* hasPathIn(object, 'a.b') | |
* // => true | |
* | |
* hasPathIn(object, ['a', 'b']) | |
* // => true | |
*/ | |
function hasPathIn(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 && key in Object(object))) { | |
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 hasPathIn |