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---
id: clone-with-props-it-IT
title: Clonare ReactElements
Upgrade to Jekyll 3 Full list of changes is at https://jekyllrb.com/docs/upgrading/2-to-3/. The tl;dr of it is: - Relative permalinks were removed, so all the files in the `docs` subdirectory need their permalink to be prefixed with `docs/` - `post` and `page` types were renamed to `posts` and `pages` respectively - `jekyll-paginate`, `pygments` and `redcarpet` are all now optional, so I needed to explicitly add it to the Gemfile. Jekyll now uses `rouge` rather than `pygments` for syntax highlighting, but rouge does not support highlighting individual lines (`hl_lines`) so we need to continue using Pygments. - Layout metadata (eg. `sectionid`) is now on a `layout` variable rather than `page` Tested the following pages and confirmed that they all work: - "Docs" link (getting started page): http://127.0.0.1:4000/react/docs/getting-started.html - Downloads: http://127.0.0.1:4000/react/downloads.html - Tutorial: http://127.0.0.1:4000/react/docs/tutorial.html - A few pages under the "docs" subdirectory, to confirm they're working properly: - http://127.0.0.1:4000/react/docs/addons.html - http://127.0.0.1:4000/react/docs/why-react.html - http://127.0.0.1:4000/react/docs/create-fragment.html - A few tips: - http://127.0.0.1:4000/react/tips/false-in-jsx.html - http://127.0.0.1:4000/react/tips/style-props-value-px.html - Non-English versions of the page: - http://127.0.0.1:4000/react/docs/getting-started-it-IT.html - http://127.0.0.1:4000/react/docs/getting-started-ja-JP.html
9 years ago
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---
> Nota:
> `cloneWithProps` è deprecato. Usa [React.cloneElement](top-level-api.html#react.cloneelement) al suo posto.
In rare condizioni, potresti voler creare una copia di un elemento React con proprietà diverse da quelle dell'elemento originale. Un esempio è clonare gli elementi passati come `this.props.children` ed effettuarne il rendering con proprietà diverse:
```js
var _makeBlue = function(element) {
return React.addons.cloneWithProps(element, {style: {color: 'blue'}});
};
var Blue = React.createClass({
render: function() {
var blueChildren = React.Children.map(this.props.children, _makeBlue);
return <div>{blueChildren}</div>;
}
});
ReactDOM.render(
<Blue>
<p>Questo testo è blu.</p>
</Blue>,
document.getElementById('container')
);
```
`cloneWithProps` non trasferisce gli attributi `key` o `ref` agli elementi clonati. Le proprietà `className` e `style` sono automaticamente riunite.