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<html><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Keywords" name="Keywords"content="JavaScript, examples, JavaScript: The Definitive Guide"><title>Example 15-5 from JavaScript: The Definitive Guide, Fifth Edition</title><style>body { font-family: arial, sans-serif}.lefttitle { font: bold x-small arial, sans-serif; margin: 5px; letter-spacing: .15em; text-transform:uppercase;}.leftcaption { font: italic x-small sans-serif; margin-bottom: 20px;}#banner { font-family:sans-serif; color:#333; font-size:x-large; font-weight:normal; padding:15px; padding-top: 3px; border-bottom:4px double #666;}#banner h1 { font-size: x-large; margin: 0px; padding: 0px;}#banner .description { font-size:large; margin-left: 2px;}pre { border: solid black 1px; background-color: #ddd; padding: 10px; margin: 0px;} </style></script></head><body><div id="banner"><h1>davidflanagan.com/javascript5</h1><span class="description">Example 15-5 from<i>JavaScript: The Definitive Guide, Fifth Edition</i></span></div><div style="float: left; 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text-align: right"><a href="index.html" tppabs="http://www.davidflanagan.com/javascript5/index.html">Table of Examples</a></div><pre><script>function sortkids(e) { // This is the element whose children we are going to sort if (typeof e == "string") e = document.getElementById(e); // Transfer the element (but not text node) children of e to a real array var kids = []; for(var x = e.firstChild; x != null; x = x.nextSibling) if (x.nodeType == 1 /* Node.ELEMENT_NODE */) kids.push(x); // Now sort the array based on the text content of each kid. // Assume that each kid has only a single child and it is a Text node kids.sort(function(n, m) { // This is the comparator function for sorting var s = n.firstChild.data; // text of node n var t = m.firstChild.data; // text of node m if (s < t) return -1; // n comes before m else if (s > t) return 1; // n comes after m else return 0; // n and m are equal }); // Now append the kids back into the parent in their sorted order. // When we insert a node that is already part of the document, it is // automatically removed from its current position, so reinserting // these nodes automatically moves them from their old position // Note that any text nodes we skipped get left behind, however. for(var i = 0; i < kids.length; i++) e.appendChild(kids[i]);}</script><ul id="list"> <!-- This is the list we'll sort --><li>one<li>two<li>three<li>four <!-- items are not in alphabetical order --></ul><!-- this is the button that sorts the list --><button onclick="sortkids('list')">Sort list</button></pre><div class="lefttitle" style="padding:0px; text-align: right"><a href="index.html" tppabs="http://www.davidflanagan.com/javascript5/index.html">Table of Examples</a></div><p><script type="text/javascript">amazon_ad_tag="davidflanagancom"; amazon_ad_width="300"; amazon_ad_height="250"; amazon_ad_logo="hide";</script><script type="text/javascript" src="../../www.assoc-amazon.com/s/ads.js" tppabs="http://www.assoc-amazon.com/s/ads.js"></script></div></body></html>⌨️ 快捷键说明
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