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	<title>让全球跨境支付更简单</title>
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		<title>Angularjs表达式与javascript表达式的区别</title>
		<link>http://isa.qa/?p=594</link>
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		<pubDate>Wed, 02 Mar 2016 06:17:12 +0000</pubDate>
		<dc:creator>吴, 登广</dc:creator>
				<category><![CDATA[技术文章]]></category>
		<category><![CDATA[AngularJS]]></category>
		<category><![CDATA[前端]]></category>

		<guid isPermaLink="false">http://isa.qa/?p=594</guid>
		<description><![CDATA[ng的表达式除了下面几点之外非常类似于js表达式 执行环境。js表达式的执行环境是在全局作用域中，即windo [&#8230;]]]></description>
				<content:encoded><![CDATA[<p>ng的表达式除了下面几点之外非常类似于js表达式</p>
<ol>
<li>执行环境。js表达式的执行环境是在全局作用域中，即window对象。ng表达式的执行环境则是在一个scope对象中执行。</li>
<li>Forgiving（报错？）：在js中尝试给一个未声明的属性赋值会抛出引用异常（ReferenceError）或者类型异常（TypeError），而在ng中，则会返回null或者underfined。因为有浏览器（window）这个全局对象，所以用js赋值平常并不会报出异常，除非是严格模式，而ng则有一个scope对象，所以也是不会出问题的。</li>
<li>不能用流程控制语句。不能够在ng表达式中使用条件判断，循环和异常。</li>
<li>不能声明方法。不能在ng表达式中声明方法，就算是在ng-init指令中也不行。</li>
<li>不能够创建正则表达式的实例。</li>
<li>不能使用new操作符来创建对象。</li>
<li>不能使用‘，’以及‘void’操作符。</li>
<li>在ng表达式中可以使用过滤器。</li>
</ol>
<p>如果要运行一些比较复杂的javascript表达式，应该封装成$scope的一个属性在控制器当中，并在视图中调用。</p>
<p>原文：<a href="https://docs.angularjs.org/guide/expression">https://docs.angularjs.org/guide/expression</a></p>
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		<title>此文章的备份与以下版本不同</title>
		<link>http://isa.qa/?p=35</link>
		<comments>http://isa.qa/?p=35#comments</comments>
		<pubDate>Thu, 16 Jan 2014 13:06:24 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[未分类]]></category>

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		<title>post-3</title>
		<link>http://isa.qa/?p=37</link>
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		<pubDate>Thu, 16 Jan 2014 12:50:12 +0000</pubDate>
		<dc:creator>admin</dc:creator>
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		<guid isPermaLink="false">http://isa.qa/?p=37</guid>
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				<content:encoded><![CDATA[<div  class='avia_message_box avia-color-green avia-size-large avia-icon_select-yes avia-border- '><span class='avia_message_box_title' >Note</span><div class='avia_message_box_content' ><span class='avia_message_box_icon' aria-hidden='true' data-av_icon='' data-av_iconfont='entypo-fontello'></span><p>This is a notification of some sort.</p>
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		<title>test</title>
		<link>http://isa.qa/?p=13</link>
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		<pubDate>Wed, 15 Jan 2014 15:59:44 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[未分类]]></category>

		<guid isPermaLink="false">http://isa.qa/?p=13</guid>
		<description><![CDATA[[rate] &#160; &#160; &#160;]]></description>
				<content:encoded><![CDATA[<p>[rate]</p>
<div class='avia-button-wrap avia-button-center '><a href='' class='avia-button  avia-icon_select-yes-left-icon avia-color-theme-color avia-size-small avia-position-center '   ><span class='avia_button_icon avia_button_icon_left ' aria-hidden='true' data-av_icon='' data-av_iconfont='entypo-fontello'></span><span class='avia_iconbox_title' >Click me</span></a></div>
<p>&nbsp;</p>
<form action="http://isa.qa/?p=13" method="post" class="avia_ajax_form av-form-labels-visible   " data-avia-form-id="1" data-avia-redirect=''><fieldset><h3>Send us mail</h3><p class=' first_form  form_element form_fullwidth' id='element_avia_name_1'><label for="avia_name_1">Name <abbr class="required" title="required">*</abbr></label> <input name="avia_name_1" class="text_input is_empty" type="text" id="avia_name_1" value="" /></p><p class=' first_form  form_element form_fullwidth' id='element_avia_e-mail_1'><label for="avia_e-mail_1">E-Mail <abbr class="required" title="required">*</abbr></label> <input name="avia_e-mail_1" class="text_input is_email" type="text" id="avia_e-mail_1" value="" /></p><p class=' first_form  form_element form_fullwidth' id='element_avia_subject_1'><label for="avia_subject_1">Subject <abbr class="required" title="required">*</abbr></label> <input name="avia_subject_1" class="text_input is_empty" type="text" id="avia_subject_1" value="" /></p><p class=' first_form  form_element form_fullwidth' id='element_avia_message_1'>	 <label for="avia_message_1" class="textare_label hidden textare_label_avia_message_1">Message <abbr class="required" title="required">*</abbr></label>	 <textarea  name="avia_message_1" class="text_area is_empty" cols="40" rows="7" id="avia_message_1" ></textarea></p><p class="hidden"><input type="text" name="avia_avia_username_1" class="hidden " id="avia_avia_username_1" value="" /></p><p class="form_element "><input type="hidden" value="1" name="avia_generated_form1" /><input type="submit" value="Submit" class="button"  data-sending-label="Sending"/></p></fieldset></form><div id="ajaxresponse_1" class="ajaxresponse ajaxresponse_1 hidden"></div>
<section class='avia-team-member '  itemscope="itemscope" itemtype="https://schema.org/Person" ><h3 class='team-member-name'   itemprop="name" >John Doe</h3><span class='hidden team-member-affiliation'  itemprop="affiliation" >让全球跨境支付更简单</span></section>
<p>&nbsp;</p>
<p>&nbsp;</p>
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		<item>
		<title>世界，你好！</title>
		<link>http://isa.qa/?p=1</link>
		<comments>http://isa.qa/?p=1#comments</comments>
		<pubDate>Mon, 13 Jan 2014 14:01:00 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[动态]]></category>

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		<description><![CDATA[欢迎使用WordPress。这是系统自动生成的演示文章。编辑或者删除它，然后开始您的博客！]]></description>
				<content:encoded><![CDATA[<p>欢迎使用WordPress。这是系统自动生成的演示文章。编辑或者删除它，然后开始您的博客！</p>
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