import baseCastPath from './_baseCastPath'; import isArguments from './isArguments'; import isArray from './isArray'; import isIndex from './_isIndex'; import isKey from './_isKey'; import isLength from './isLength'; import isString from './isString'; import last from './last'; import parent from './_parent'; /** * Checks if `path` exists on `object`. * * @private * @param {Object} object The object to query. * @param {Array|string} path The path to check. * @param {Function} hasFunc The function to check properties. * @returns {boolean} Returns `true` if `path` exists, else `false`. */ function hasPath(object, path, hasFunc) { if (object == null) { return false; } var result = hasFunc(object, path); if (!result && !isKey(path)) { path = baseCastPath(path); object = parent(object, path); if (object != null) { path = last(path); result = hasFunc(object, path); } } var length = object ? object.length : undefined; return result || ( !!length && isLength(length) && isIndex(path, length) && (isArray(object) || isString(object) || isArguments(object)) ); } export default hasPath;