drdmitry · April 20, 2019 09:58
diff --git a/code.html b/code.html
 <!doctype html>
 <html>
    <head>
        <meta charset="utf-8">
        <title>Test</title>
    </head>
    <body>
        <article>
            <h1>Computer Graphics</h1>
            <p>
                Computer graphics are graphics created using computers and the representation of image data
                by a computer specifically with help from specialized graphic hardware and software.

                The interaction and understanding of computers and interpretation of data has been made
                easier because of computer graphics. Computer graphic development has had a significant
                impact on many types of media and have revolutionized animation, movies and the video
                game industry.
            </p>

            <h1>Overview</h1>
            <p>
                The term computer graphics has been used in a broad sense to describe "almost everything on
                computers that is not text or sound".[1] Typically, the term computer graphics refers to
                several different things:
            </p>

            <ul>
                <li>the representation and manipulation of image data by a computer</li>
                <li>the various technologies used to create and manipulate images</li>
                <li>
                    the sub-field of computer science which studies methods for digitally synthesizing and
                    manipulating visual content, see study of computer graphics
                </li>
            </ul>

            <p>
                Computer graphics is widespread today. Computer imagery is found on television, in newspapers,
                for example in weather reports, or for example in all kinds of medical investigation and surgical
                procedures. A well-constructed <a href="http://en.wikipedia.org/wiki/Chart">graph</a> can present
                complex statistics in a form that is easier to understand and interpret. In the media "such graphs
                are used to illustrate papers, reports, thesis", and other presentation material.[2]

                Many powerful tools have been developed to visualize data. Computer generated imagery can be
                categorized into several different types: two dimensional (2D), three dimensional (3D), and animated
                graphics. As technology has improved, 3D computer graphics have become more common, but 2D computer
                graphics are still widely used. Computer graphics has emerged as a sub-field of computer science
                which studies methods for digitally synthesizing and manipulating visual content. Over the past
                decade, other specialized fields have been developed like information visualization, and scientific
                visualization more concerned with "the visualization of three dimensional phenomena (architectural,
                meteorological, medical, biological, etc.), where the emphasis is on realistic renderings of volumes,
                surfaces, illumination sources, and so forth, perhaps with a dynamic (time) component".[3]
            </p>
        </article>

        <section id="result"></section>

        <script>
          // Your code
          const nodeStart = document.querySelector('article');
          const nodeResult = document.getElementById('result');
          const hash = {
            // 'computer': 1,
          };
          const extractText = (text, hash) => {
            const re = new RegExp(/\S+/g);
            let reResult
            while(re.exec(text)) {
              // fill hash
            };
          };
          const traverseDOM = (node, hash) => {
            console.log(node);
            const children = node.childNodes;
            console.log(children);
            const len = children.length;
            console.log('len', len);
            if (len === 0) {
              console.log(node.innerText);
              extractText(node.innerText, hash);
              return;
            }
            for (let i = 0; i < len; i++) {
              const nodeItem = children[i];
              console.log(nodeItem);
              traverseDOM(nodeItem, hash);
            }
          };
          const sortByOccurences = (hash) => {
            // const arr = Object.keys(hash).map().sort();
          };
          const showResults = (node, arr) => {
            nodeList = document.createElement('ol');
            arr.forEach(key => {
              const number = hash[key];
              const nodeElement = document.createElement('li');
              nodeElement.innerText = `${key} (${number})`;
              nodeList.appendChild(nodeElement);
            });
            node.appendChild(nodeList);
          };
          traverseDOM(nodeStart, hash);
          const arr = sortByOccurences(hash);
          showResults(nodeResult, arr);
        </script>
    </body>
 </html>
	<!doctype html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>Test</title>
	</head>
	<body>
	<article>
	<h1>Computer Graphics</h1>
	<p>
	Computer graphics are graphics created using computers and the representation of image data
	by a computer specifically with help from specialized graphic hardware and software.

	The interaction and understanding of computers and interpretation of data has been made
	easier because of computer graphics. Computer graphic development has had a significant
	impact on many types of media and have revolutionized animation, movies and the video
	game industry.
	</p>

	<h1>Overview</h1>
	<p>
	The term computer graphics has been used in a broad sense to describe "almost everything on
	computers that is not text or sound".[1] Typically, the term computer graphics refers to
	several different things:
	</p>

	<ul>
	<li>the representation and manipulation of image data by a computer</li>
	<li>the various technologies used to create and manipulate images</li>
	<li>
	the sub-field of computer science which studies methods for digitally synthesizing and
	manipulating visual content, see study of computer graphics
	</li>
	</ul>

	<p>
	Computer graphics is widespread today. Computer imagery is found on television, in newspapers,
	for example in weather reports, or for example in all kinds of medical investigation and surgical
	procedures. A well-constructed <a href="http://en.wikipedia.org/wiki/Chart">graph</a> can present
	complex statistics in a form that is easier to understand and interpret. In the media "such graphs
	are used to illustrate papers, reports, thesis", and other presentation material.[2]

	Many powerful tools have been developed to visualize data. Computer generated imagery can be
	categorized into several different types: two dimensional (2D), three dimensional (3D), and animated
	graphics. As technology has improved, 3D computer graphics have become more common, but 2D computer
	graphics are still widely used. Computer graphics has emerged as a sub-field of computer science
	which studies methods for digitally synthesizing and manipulating visual content. Over the past
	decade, other specialized fields have been developed like information visualization, and scientific
	visualization more concerned with "the visualization of three dimensional phenomena (architectural,
	meteorological, medical, biological, etc.), where the emphasis is on realistic renderings of volumes,
	surfaces, illumination sources, and so forth, perhaps with a dynamic (time) component".[3]
	</p>
	</article>

	<section id="result"></section>

	<script>
	// Your code
	const nodeStart = document.querySelector('article');
	const nodeResult = document.getElementById('result');
	const hash = {
	// 'computer': 1,
	};
	const extractText = (text, hash) => {
	const re = new RegExp(/\S+/g);
	let reResult
	while(re.exec(text)) {
	// fill hash
	};
	};
	const traverseDOM = (node, hash) => {
	console.log(node);
	const children = node.childNodes;
	console.log(children);
	const len = children.length;
	console.log('len', len);
	if (len === 0) {
	console.log(node.innerText);
	extractText(node.innerText, hash);
	return;
	}
	for (let i = 0; i < len; i++) {
	const nodeItem = children[i];
	console.log(nodeItem);
	traverseDOM(nodeItem, hash);
	}
	};
	const sortByOccurences = (hash) => {
	// const arr = Object.keys(hash).map().sort();
	};
	const showResults = (node, arr) => {
	nodeList = document.createElement('ol');
	arr.forEach(key => {
	const number = hash[key];
	const nodeElement = document.createElement('li');
	nodeElement.innerText = `${key} (${number})`;
	nodeList.appendChild(nodeElement);
	});
	node.appendChild(nodeList);
	};
	traverseDOM(nodeStart, hash);
	const arr = sortByOccurences(hash);
	showResults(nodeResult, arr);
	</script>
	</body>
	</html>
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