-var arrayAt = require('../array/virtual/at');
-var stringAt = require('../string/virtual/at');
+var isPrototypeOf = require('../../internals/object-is-prototype-of');
+var arrayMethod = require('../array/virtual/at');
+var stringMethod = require('../string/virtual/at');
var ArrayPrototype = Array.prototype;
var StringPrototype = String.prototype;
module.exports = function (it) {
var own = it.at;
- 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;
} return own;
};