javascript - How to listen to a script tag's onload event? - Stack Overflow

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<script id="me" src=".11.3/jquery.min.js"></script
<script>
    var oB = document.getElementsById('me');
    me.onload = function(){
        alert('OK');
    }
</script>

Why me.onload is not triggered after the script is loaded?

<script id="me" src="https://ajax.googleapis./ajax/libs/jquery/1.11.3/jquery.min.js"></script
<script>
    var oB = document.getElementsById('me');
    me.onload = function(){
        alert('OK');
    }
</script>

Why me.onload is not triggered after the script is loaded?

• javascript
• dom-events

Share Improve this question Follow edited May 25, 2015 at 9:42 avetisk 12.3k44 gold badges2828 silver badges3838 bronze badges asked May 22, 2015 at 9:35 user4329409user4329409 2311 gold badge11 silver badge66 bronze badges 0

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3 Answers 3

Sorted by: Reset to default 3

There are 2 issues:

• a missing > at the end of the first line (you have written </script instead of </script>)
• there is no variable me: you have retrieved the script tag into a variable oB.

Thus, you can fix your code by change me.onload = ... to ob.onload = ....

Moreoever, you should avoid using inlined declaration of event listeners such as <script onload="...">.

Last but not least, you should use addEventListener instead of onxxx: addEventListener vs onclick

document.getElementById instead of document.getElementsById

oB instead of me

<script id="me" src="https://ajax.googleapis./ajax/libs/jquery/1.11.3/jquery.min.js"></script
<script>
    var oB=document.getElementById('me');
    oB.onload=function(){
        alert('OK')
    }
</script>

But this won't work either because me is already loaded like the other answer states.

before you execute the alert codes, the script tag with id "me" is already downloaded, so despite the syntax error in your code, you can not get the alert.

you can simply use:

<script id="me" onload="alert('OK');"src="https://ajax.googleapis./ajax/libs/jquery/1.11.3/jquery.min.js"></script>

本文标签： javascriptHow to listen to a script tag39s onload eventStack Overflow