--- /dev/null
+var baseToPath = require('./_baseToPath'),
+ isArguments = require('./isArguments'),
+ isArray = require('./isArray'),
+ isIndex = require('./_isIndex'),
+ isKey = require('./_isKey'),
+ isLength = require('./isLength'),
+ isString = require('./isString'),
+ last = require('./last'),
+ parent = require('./_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 = baseToPath(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))
+ );
+}
+
+module.exports = hasPath;