- if (it === ArrayPrototype || (it instanceof Array && own === ArrayPrototype.at)) return arrayAt;
- if (typeof it === 'string' || it === StringPrototype || (it instanceof String && own === StringPrototype.at)) {
- return stringAt;
+ if (it === ArrayPrototype || (isPrototypeOf(ArrayPrototype, it) && own === ArrayPrototype.at)) return arrayMethod;
+ if (typeof it == 'string' || it === StringPrototype || (isPrototypeOf(StringPrototype, it) && own === StringPrototype.at)) {
+ return stringMethod;