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Merged
merged 8 commits into from
Mar 3, 2019
12 changes: 6 additions & 6 deletions content/docs/reference-javascript-environment-requirements.md
Original file line number Diff line number Diff line change
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---
id: javascript-environment-requirements
title: JavaScript Environment Requirements
title: Wymagania środowiska JavaScript
layout: docs
category: Reference
permalink: docs/javascript-environment-requirements.html
---

React 16 depends on the collection types [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) and [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set). If you support older browsers and devices which may not yet provide these natively (e.g. IE < 11) or which have non-compliant implementations (e.g. IE 11), consider including a global polyfill in your bundled application, such as [core-js](https://github.com/zloirock/core-js) or [babel-polyfill](https://babeljs.io/docs/usage/polyfill/).
React 16 opiera się na typach kolekcji [Map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map) i [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set). Jeżeli wspierasz starsze przeglądarki oraz urzadzenia, które mogą jeszcze nie udostępniać ich w sposób natywny (np. IE < 11) lub które posiadają niezgodności implementacyjne (np. IE 11), rozważ dodanie globalnej łatki do swojej aplikacji, korzystając z [core-js](https://github.com/zloirock/core-js) lub [babel-polyfill](https://babeljs.io/docs/usage/polyfill/).

A polyfilled environment for React 16 using core-js to support older browsers might look like:
Środowisko, w którym zastosowano łatki dla Reacta 16 korzystając z core-js, może wyglądać tak:

```js
import 'core-js/es6/map';
Expand All @@ -18,13 +18,13 @@ import React from 'react';
import ReactDOM from 'react-dom';

ReactDOM.render(
<h1>Hello, world!</h1>,
<h1>Witaj, świecie!</h1>,
document.getElementById('root')
);
```

React also depends on `requestAnimationFrame` (even in test environments).
You can use the [raf](https://www.npmjs.com/package/raf) package to shim `requestAnimationFrame`:
React jest zależny od funkcji `requestAnimationFrame` (nawet w środowiskach testowych).
Możesz ją dodać, korzystając z pakietu [raf](https://www.npmjs.com/package/raf):

```js
import 'raf/polyfill';
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