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closes #495

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Ilya Kantor 2018-10-07 22:03:05 +03:00
parent 6f8bd3c0de
commit 30862423b0
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57
2-ui/1-document/05-basic-dom-node-properties/2-tree-info/solution.view/index.html Normal file
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<!DOCTYPE HTML>
<html>
<body>
<ul>
<li>Animals
<ul>
<li>Mammals
<ul>
<li>Cows</li>
<li>Donkeys</li>
<li>Dogs</li>
<li>Tigers</li>
</ul>
</li>
<li>Other
<ul>
<li>Snakes</li>
<li>Birds</li>
<li>Lizards</li>
</ul>
</li>
</ul>
</li>
<li>Fishes
<ul>
<li>Aquarium
<ul>
<li>Guppy</li>
<li>Angelfish</li>
</ul>
</li>
<li>Sea
<ul>
<li>Sea trout</li>
</ul>
</li>
</ul>
</li>
</ul>
<script>
for (let li of document.querySelectorAll('li')) {
// get the title from the text node
let title = li.firstChild.data;
title = title.trim(); // remove extra spaces from ends
// get the descendants count
let count = li.getElementsByTagName('li').length;
alert(title + ': ' + count);
}
</script>
</body>
</html>