[英]Dynamically include external Javascript file
So I need to dynamically call and execute the javascript code generated from external php file. 因此,我需要动态调用并执行从外部php文件生成的javascript代码。 This is what I have:
这就是我所拥有的:
<script type="text/javascript">
id = <some id calculation>;
var code_url = 'http://example.com/javascript.php?id=' + id; // this generates the javascript desired
var code_div = document.getElementById("code_div"); // where I want to insert the JS
var fileref=document.createElement('script');
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", code_url);
code_div.appendChild(fileref);
}
</script>
Now the div with the javascript link does show up, but it doesn't seem to execute. 现在带有javascript链接的div确实出现了,但是似乎没有执行。 I tried going through other similar questions on StackOverflow and other places, but that's as far as it got me.
我尝试过在StackOverflow和其他地方进行其他类似的问题,但就我所知。 Any idea why it's not executing?
知道为什么它没有执行吗?
UPDATE: Fixed the missing quote. 更新:修复了缺少的报价。 Also I should've mentioned I placed the code inside the body.
我还应该提到我将代码放在体内。 I don't have access to the HEAD in my case, and I need to insert the Analytics code
在我的情况下,我无权访问HEAD,我需要插入Google Analytics(分析)代码
The code should cause the code in the script element to be executed (once the missing quote on line 1 is added), are you sure that's exactly what you have in your page? 该代码应导致执行script元素中的代码(一旦在第1行上添加了缺少的引号),您确定这正是页面中的内容吗? eg the following works:
例如以下作品:
window.onload = function() {
var s = document.createElement('script');
s.type = 'text/javascript';
s.src = '_foo.js';
document.body.appendChild(s);
}
in _foo.js
: 在
_foo.js
:
alert('loaded');
看看: http : //headjs.com/
After fixing mistakes (such as missing function declaration, closing quote in your code), make sure your code_url
reference to a page which has a function calling or an event ; 修正错误(例如,缺少函数声明,代码中的引号)之后,请确保您对具有函数调用或事件的页面的
code_url
引用;
Ex: 例如:
function needToExecute() {
...
}
needToExecute();
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