执行javascript作为coldfusion页面加载
I have a ColdFusion page that on it, has several cfinclude template calls which include separate files into the page. I would like to update a javascript variable before each cfinclude template call. I've tried using:
我有一个ColdFusion页面，上面有几个cfinclude模板调用，其中包含单独的文件到页面中。我想在每个cfinclude模板调用之前更新一个javascript变量。我尝试过使用：
<script type="text/javascript">
myvariable = 'new status';
</script>
However, the javascript doesn't get executed until every single template included on the page finishes processing, instead of before each one executes.
但是，直到页面上包含的每个模板完成处理，而不是在每个模板执行之前，javascript才会执行。
Is there some way I can actually execute javascript code AS the page loads?
有没有办法在页面加载时实际执行javascript代码？
1 个解决方案
#1
4
You can accomplish this with <cfflush>.
您可以使用
CFFlush will send the current HTML/javascript output to the browser as it continues to process. It would look something like this:
CFFlush会在继续处理时将当前的HTML / javascript输出发送到浏览器。它看起来像这样：
<CFInclude template="process1.cfm">
<CFoutput>
<script type="text/javascript">
myvariable = 'new status';
</script>
</CFoutput>
<cfflush>
<CFInclude template="process2.cfm">
... and repeat.
......并重复一遍。
The javascript will be interpreted by the browser as soon as it is loaded. This sometimes causes unpredictable behavior since the DOM is not complete and in a ready state, but for simple operations it works.
浏览器加载后将立即解释javascript。这有时会导致不可预测的行为，因为DOM不完整且处于就绪状态，但对于简单的操作，它可以工作。
Edit: note that you often have to pad your output with something like <cfoutput>#repeatString(" ", 250)#</cfoutput> before the browser will process it. See http://www.raymondcamden.com/index.cfm/2006/11/29/A-Loading-page-with-CFFLUSH-and-JavaScript
编辑：请注意，在浏览器处理输出之前，您经常需要使用
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