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Add react example #6

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Add react example #6

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55 changes: 55 additions & 0 deletions Original/react/index.html
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Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html>
<head>
<title>React Demonstration</title>
<script src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
<script src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
<style>
.pager { margin: 5px 10px; user-select: none; -webkit-user-select: none; font-family: sans-serif; }
.pager .page { display: inline-block; padding: 0px 5px; cursor: pointer; }
.pager .page:active { color: red; }
.selected { font-weight: bold; color: red; }
.paged-content { font: bold 250% sans-serif; padding: 25px 10px; }
</style>
</head>
<body>
<div id="root"></div>
<script>
function PagedContent({ id, page }) {
const props = { id, className: 'paged-content' };
return React.createElement('div', props, `Page ${page}`);
}

function Pager({ id, pages, page, setPage }) {
return React.createElement('div', { id, className: 'pager' }, [
React.createElement('span', { key: 'intro' }, 'Page: '),
...new Array(pages).fill(null).map((_, index) => {
function onClick() {
setPage(index + 1);
};
const className = `page${index + 1 === page ? ' selected' : ''}`;
const props = { key: index, onClick, className };
return React.createElement('span', props, index + 1);
}),
]);
}

function MyApp() {
const pages = 5;
const [page, setPage] = React.useState(1);

return React.createElement(
React.Fragment,
{},
React.createElement(Pager, { id: 'top_pager', pages, page, setPage }),
React.createElement(PagedContent, { id: 'content', page }),
React.createElement(Pager, { id: 'bottom_pager', pages, page, setPage })
);
}

const container = document.getElementById('root');
const root = ReactDOM.createRoot(container);
root.render(React.createElement(MyApp));
</script>
</body>
</html>