rafaelcamargo/index.html

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5">
  <title>Debounce</title>
  <style media="screen">
    html, body {
      margin: 0;
      font-family: Arial, sans-serif;
    }
    .app {
      margin: 0 auto;
      padding: 0 0 50px;
      width: 90%;
      max-width: 400px;
    }
    .loader {
      margin-top: 50px;
      text-align: center;
    }
    .bar {
      position: sticky;
      padding: 25px 0;
      top: 0;
      background-color: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
    }
    input {
      padding: 10px;
      width: 100%;
      font-size: 16px;
      border: 1px solid #c6c6c6;
      border-radius: 4px;
      box-sizing: border-box;
      -webkit-appearance: none;
    }
    ul {
      margin: 30px 0 0;
      padding: 0;
      list-style-type: none;
    }
    li {
      display: inline-block;
      width: 100%;
      text-transform: capitalize;
      white-space: nowrap;
      text-overflow: ellipsis;
      overflow: hidden;
    }
    li:not(:first-child) {
      margin-top: 10px;
      padding-top: 10px;
      border-top: 1px solid #c6c6c6;
    }
  </style>
</head>
<body>
  <div data-root class="app"><div class="loader">Loading...</div></div>
  <script src="https://cdn.jsdelivr.net/npm/react@16.14.0/umd/react.production.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/react-dom@16.14.0/umd/react-dom.production.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/@babel/standalone@7.13.8/babel.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/react-query@3.39.3/dist/react-query.production.min.js"></script>
  <script type="text/babel">
    (function(){
      const { useState, useEffect } = React;
      // React Query Global Setup
      const { QueryClient, QueryClientProvider } = ReactQuery;
      const queryClient = new QueryClient({
        defaultOptions: { queries: { refetchOnWindowFocus: false } }
      });

      // Query Debounce
      const useCustomQuery = (params, request, { debounce, ...options } = {}) => {
        const [newParams, setNewParams] = useState(params);
        const stringify = obj => JSON.stringify(obj);

        useEffect(() => {
          if (stringify(params) !== stringify(newParams)) {
            const timerId = setTimeout(() => setNewParams(params), debounce);
            return () => clearTimeout(timerId);
          }
        }, [params]);

        return ReactQuery.useQuery(newParams, request, options);
      }

      const App = () => {
        const [term, setTerm] = useState('');
        const handleTermChange = term => typeof term == 'string' && setTerm(term);
        const { data: posts } = useCustomQuery(
          ['posts', term],
          () => fetch(
            `https://jsonplaceholder.typicode.com/posts?q=${term}&_limit=20`
          ).then(response => response.json()),
          { debounce: 750 }
        );

        return (
          <>
            <div className="bar">
              <input
                type="text"
                aria-label="Search by term"
                placeholder="Search"
                onChange={({ target: { value } }) => handleTermChange(value)}
              />
            </div>
            <ul>{posts?.map(post => (<li>{post.title}</li>))}</ul>
          </>
        );
      };

      ReactDOM.render(
        <QueryClientProvider client={queryClient}>
          <App />
        </QueryClientProvider>,
        document.querySelector('[data-root]')
      );
    }());
  </script>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5">
	<title>Debounce</title>
	<style media="screen">
	html, body {
	margin: 0;
	font-family: Arial, sans-serif;
	}
	.app {
	margin: 0 auto;
	padding: 0 0 50px;
	width: 90%;
	max-width: 400px;
	}
	.loader {
	margin-top: 50px;
	text-align: center;
	}
	.bar {
	position: sticky;
	padding: 25px 0;
	top: 0;
	background-color: rgba(255, 255, 255, 0.85);
	backdrop-filter: blur(12px);
	}
	input {
	padding: 10px;
	width: 100%;
	font-size: 16px;
	border: 1px solid #c6c6c6;
	border-radius: 4px;
	box-sizing: border-box;
	-webkit-appearance: none;
	}
	ul {
	margin: 30px 0 0;
	padding: 0;
	list-style-type: none;
	}
	li {
	display: inline-block;
	width: 100%;
	text-transform: capitalize;
	white-space: nowrap;
	text-overflow: ellipsis;
	overflow: hidden;
	}
	li:not(:first-child) {
	margin-top: 10px;
	padding-top: 10px;
	border-top: 1px solid #c6c6c6;
	}
	</style>
	</head>
	<body>
	<div data-root class="app"><div class="loader">Loading...</div></div>
	<script src="https://cdn.jsdelivr.net/npm/react@16.14.0/umd/react.production.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/react-dom@16.14.0/umd/react-dom.production.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/@babel/standalone@7.13.8/babel.min.js"></script>
	<script src="https://cdn.jsdelivr.net/npm/react-query@3.39.3/dist/react-query.production.min.js"></script>
	<script type="text/babel">
	(function(){
	const { useState, useEffect } = React;
	// React Query Global Setup
	const { QueryClient, QueryClientProvider } = ReactQuery;
	const queryClient = new QueryClient({
	defaultOptions: { queries: { refetchOnWindowFocus: false } }
	});

	// Query Debounce
	const useCustomQuery = (params, request, { debounce, ...options } = {}) => {
	const [newParams, setNewParams] = useState(params);
	const stringify = obj => JSON.stringify(obj);

	useEffect(() => {
	if (stringify(params) !== stringify(newParams)) {
	const timerId = setTimeout(() => setNewParams(params), debounce);
	return () => clearTimeout(timerId);
	}
	}, [params]);

	return ReactQuery.useQuery(newParams, request, options);
	}

	const App = () => {
	const [term, setTerm] = useState('');
	const handleTermChange = term => typeof term == 'string' && setTerm(term);
	const { data: posts } = useCustomQuery(
	['posts', term],
	() => fetch(
	`https://jsonplaceholder.typicode.com/posts?q=${term}&_limit=20`
	).then(response => response.json()),
	{ debounce: 750 }
	);

	return (
	<>
	<div className="bar">
	<input
	type="text"
	aria-label="Search by term"
	placeholder="Search"
	onChange={({ target: { value } }) => handleTermChange(value)}
	/>
	</div>
	<ul>{posts?.map(post => (<li>{post.title}</li>))}</ul>
	</>
	);
	};

	ReactDOM.render(
	<QueryClientProvider client={queryClient}>
	<App />
	</QueryClientProvider>,
	document.querySelector('[data-root]')
	);
	}());
	</script>
	</body>
	</html>