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	<title>评论：Javascript的变量与delete操作符</title>
	<atom:link href="http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/feed/" rel="self" type="application/rss+xml" />
	<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/</link>
	<description>关注Web开发技术，关注Internet。</description>
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		<title>来自：ZhouQi</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-409618</link>
		<dc:creator>ZhouQi</dc:creator>
		<pubDate>Tue, 04 May 2010 07:50:12 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-409618</guid>
		<description>谢谢</description>
		<content:encoded><![CDATA[<p>谢谢</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：George Wing</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-406323</link>
		<dc:creator>George Wing</dc:creator>
		<pubDate>Tue, 27 Apr 2010 02:27:03 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-406323</guid>
		<description>不错！学习了。</description>
		<content:encoded><![CDATA[<p>不错！学习了。</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：bollwang</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-390354</link>
		<dc:creator>bollwang</dc:creator>
		<pubDate>Thu, 25 Mar 2010 13:44:00 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-390354</guid>
		<description>对变量执行delete的情况
var global = 42;
delete global;     // 删除Global.global

和

能删除的变量和不能删除的变量
var x = 36;
delete x;
x;     // 36, x没有被删除

是否矛盾？改怎么理解</description>
		<content:encoded><![CDATA[<p>对变量执行delete的情况<br />
var global = 42;<br />
delete global;     // 删除Global.global</p>
<p>和</p>
<p>能删除的变量和不能删除的变量<br />
var x = 36;<br />
delete x;<br />
x;     // 36, x没有被删除</p>
<p>是否矛盾？改怎么理解</p>
]]></content:encoded>
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	<item>
		<title>来自：jzx</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-126329</link>
		<dc:creator>jzx</dc:creator>
		<pubDate>Sat, 29 Aug 2009 06:11:28 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-126329</guid>
		<description>说得很透彻。不错。谢谢了。</description>
		<content:encoded><![CDATA[<p>说得很透彻。不错。谢谢了。</p>
]]></content:encoded>
	</item>
	<item>
		<title>来自：cloved</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-23469</link>
		<dc:creator>cloved</dc:creator>
		<pubDate>Tue, 23 Jun 2009 08:14:43 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-23469</guid>
		<description>看了以后对javascript又有了深刻的了解了.</description>
		<content:encoded><![CDATA[<p>看了以后对javascript又有了深刻的了解了.</p>
]]></content:encoded>
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	<item>
		<title>来自：谢谢</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-23299</link>
		<dc:creator>谢谢</dc:creator>
		<pubDate>Sat, 13 Jun 2009 18:17:42 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-23299</guid>
		<description>谢谢你。。然我明白了这个 很感谢，</description>
		<content:encoded><![CDATA[<p>谢谢你。。然我明白了这个 很感谢，</p>
]]></content:encoded>
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	<item>
		<title>来自：kai.ma</title>
		<link>http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/comment-page-1/#comment-19092</link>
		<dc:creator>kai.ma</dc:creator>
		<pubDate>Thu, 19 Mar 2009 09:26:32 +0000</pubDate>
		<guid isPermaLink="false">http://tech.idv2.com/2008/01/09/javascript-variables-and-delete-operator/#comment-19092</guid>
		<description>“但是有一点例外，就是通过 eval 执行的代码中，通过var声明的变量虽然与正常的var声明变量同属于Global对象”这个说法是不严谨的。

eval执行代码声明的变量到底是谁哪个对象的属性，和定义他时所在的作用域有关。而且eval和浏览器也有关，FF和IE下表现也不一致。</description>
		<content:encoded><![CDATA[<p>“但是有一点例外，就是通过 eval 执行的代码中，通过var声明的变量虽然与正常的var声明变量同属于Global对象”这个说法是不严谨的。</p>
<p>eval执行代码声明的变量到底是谁哪个对象的属性，和定义他时所在的作用域有关。而且eval和浏览器也有关，FF和IE下表现也不一致。</p>
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