So I need to dynamically call and execute the javascript code generated from external php file. This is what I have:
<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. I tried going through other similar questions on StackOverflow and other places, but that's as far as it got me. Any idea why it's not executing?
UPDATE: Fixed the missing quote. Also I should've mentioned I placed the code inside the body. I don't have access to the HEAD in my case, and I need to insert the Analytics code
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? eg the following works:
window.onload = function() {
var s = document.createElement('script');
s.type = 'text/javascript';
s.src = '_foo.js';
document.body.appendChild(s);
}
in _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 ;
Ex:
function needToExecute() {
...
}
needToExecute();
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