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<td width="365" valign="middle"><font size="4" color="#ff3300" face="宋体"><br>
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</font><font face="宋体"><font size="5"><font color="#ff3300"><b>Webmonkey Array
Enhancements</b></font></font><big><br>
<!-- BYLINE --> </big></font><font face="宋体" color="#000000" size="3">作者<a
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mail to Thau!">Thau!</a></font><big><font
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<font size="3"><b>Related Library Items</b></font><br>
<font color="#ff3300">- - - - - - - - - -</font> <br>
</font><font size="3"><b><a href="wm_chg_link_bh.html" tppabs="http://www.webmonkey.com.cn/javascript/code/wm_chg_link_bh.html">网猴的变换链接行<br>
为（<font face="宋体">Change Link <br>
Behavior</font>）</a></b></font><font face="宋体"><big><br>
</big></font><font size="3">该<strong>行为</strong>能够使你改变<br>
网页中一个或多个定<br>
位链接将其指向不同<br>
的<font face="宋体">URL</font>。</font><font size="2" face="宋体"><br>
</font><p><font size="3"><a href="cookie.htm" tppabs="http://www.webmonkey.com.cn/javascript/code/cookie.htm"><b>网猴<font face="宋体">Cookies</font>集锦</b></a></font><font
face="宋体"><br>
</font><font size="3">这些函数可以大大简化你使用<font face="宋体">cookies</font>时<br>
的麻烦。</font><font size="2"><br>
</font><font face="宋体"><br>
<br>
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<td><font face="宋体">JavaScript 1.2</font>只能用于<font face="宋体">Netscape 4.0</font>，它对数组对<br>
象添加了几项基本方法。表单所列函数中其中还有几<br>
种能用于<font face="宋体">3.0</font>版浏览器。<p>添加的方法如下：<br>
<ul>
<li><font face="宋体">copy - </font>将一个数组的内容拷贝到另一个数组中。
</li>
<li><font face="宋体">push - </font>将一个元素添加到数组的结尾处。 </li>
<li><font face="宋体">pop - </font>将数组结尾处的元素从数组中去除。 </li>
<li><font face="宋体">shift - </font>将数组起始处的元素从数组中去除。并<br>
缩短数组。 </li>
<li><font face="宋体">unshift - </font>将一个元素添加到数组起始处。 </li>
<li><font face="宋体">concat - </font>将一个数组中的元素附加到另一个数<br>
组的结尾处。</li>
<li><font face="宋体">permute - </font>将一个数组中的元素的顺序随机化。</li>
</ul>
<p><b>用法：下面的例子假设你用一个名称为</b><font face="宋体"><tt>primates</tt></font>的数<br>
组，它的起始元素是<font face="宋体"><tt>human, chimp, ape</tt></font>，即：</p>
<p><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
</font><dl>
<dt><font face="宋体">copy </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>var copy_of_primates = primates.copy();</tt></font><p><font face="宋体"><tt>copy_of_primates</tt></font>数组中的元素将和<font
face="宋体"><tt>primates</tt></font>数<br>
组中所含元素相同。<br>
使用该函数时要谨慎，因为如果该数组中包含对<br>
对象的引用，则该函数的拷贝功能会将引用也拷<br>
贝到新的数组中。也就是说，如果你改变原始数<br>
组中的对象，则新数组中引用也会被改变。</p>
</dd>
<dt><font face="宋体">push </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>primates.push('lemur');</tt><br>
</font>现在<font face="宋体"><tt>primates</tt></font>数组包含元素 <font
face="宋体"><tt>('human','chimp','ape','lemur')</tt>. </font></dd>
<dt><font face="宋体">pop </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>var last_primate = primates.pop();</tt></font><p>现在<font face="宋体"><tt>primates</tt></font>数组包含元素<font
face="宋体"><tt>('human','chimp')</tt></font>并且<br>
<font face="宋体"><tt>last_primate</tt></font>是<font face="宋体"><tt>'ape'</tt></font>。</p>
</dd>
<dt><font face="宋体">shift </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>var first_primate = primates.shift();</tt></font><p>现在<font face="宋体"><tt>primates</tt></font>包含<font
face="宋体"><tt>('chimp','ape')</tt> </font>并且<font face="宋体"><tt>first_primate</tt>
</font><br>
值为<tt><font face="宋体">'human'</font>。</tt></p>
</dd>
<dt><font face="宋体">unshift </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>primates.unshift('gorilla');</tt></font><p>现在<font face="宋体"><tt>primates</tt></font>数组包含元素
<font face="宋体"><tt>('gorilla','human','chimp','ape')</tt>. </font></p>
</dd>
<dt><font face="宋体">concat </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>var dogs = new Array('puli','pointer','collie');</tt><br>
<tt>var mammals = primates.concat(dogs);</tt></font><p>现在<font face="宋体"><tt>mammals</tt></font>数组包含
<br>
<font face="宋体"><tt>('human','chimp','ape','puli','pointer','collie')</tt>. <br>
Concat</font>使用拷贝功能，所以如果该数组中包含对<br>
对象的引用，则该函数的拷贝功能会将引用也拷贝<br>
到新的数组中。也就是说，如果你改变原始数组中<br>
的对象，则新数组中引用也会被改变。</p>
</dd>
<dt><font face="宋体">permute </font></dt>
<dd><font face="宋体"><tt>var primates = new Array('human','chimp','ape');</tt><br>
<tt>var scrambled_primates = primates.permute();</tt></font><p>现在<font face="宋体"><tt>scrambled_primates</tt></font>包含<font
face="宋体"><tt>('ape','human','chimp')</tt> </font><br>
或其他顺序随机的元素。<br>
<font face="宋体">Permute</font>使用拷贝功能，所以如果该数组中包含对<br>
对象的引用，则该函数的拷贝功能会将引用也拷贝<br>
到新的数组中。也就是说，如果你改变原始数组中<br>
的对象，则新数组中引用也会被改变。 </p>
</dd>
</dl>
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<p><b>欢迎剪贴使用<font face="宋体">!</b> </font></font><font size="2"></p>
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