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  1. #1
    New to the CF scene
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    using innerHTML to run a script

    I have a script in the head of the document with the following line:
    document.getElementById("txtHint").innerHTML="<script>foo();<\/script>";

    and I want it to be used to run function foo() in the body:

    <script>
    function foo(){
    console.log("FOO");
    }

    </script>
    <div id="txtHint"></div>

    but it doesn't write anything in console. what is the problem?

  • #2
    Senior Coder xelawho's Avatar
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    possibly one of the weirder attempts at a function call I have seen.

    but it's a basic problem: your getElementById runs in the head, which comes before the body

    your "txtHint" div gets created in the body. ie, after your script has run

    so the code tries to get an element that doesn't exist yet

    and it pretty much goes all downhill from there. there may be other conceptual problems with what you are trying to do, but that's the dealbreaker for now.

    can I ask why you are trying to do it that way instead of something a little more, uh... normal?

  • #3
    Senior Coder rnd me's Avatar
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    <script> tags created with innerHTML don't work.
    my site (updated 13/9/26)
    BROWSER STATS [% share] (2014/5/28) IE7:0.1, IE8:5.3, IE11:8.4, IE9:3.2, IE10:3.2, FF:18.2, CH:46, SF:7.9, NON-MOUSE:32%

  • #4
    Supreme Master coder! glenngv's Avatar
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    If you just want to call foo(), then why don't you just call it directly? Why do you need innerHTML to call it?

  • #5
    Master Coder felgall's Avatar
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    If you want to add a script to the page then just use the correct DOM call to create the script tag. It is one of the situations where you must use the DOM rather than innerHTML.
    Stephen
    Learn Modern JavaScript - http://javascriptexample.net/
    Helping others to solve their computer problem at http://www.felgall.com/

    Don't forget to start your JavaScript code with "use strict"; which makes it easier to find errors in your code.


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