Chrome Extension: Inject Javascript to set variables

Question

How can I inject a <script> to my document which will initialize a variable?

content_script:

$("body").append('<script type="text/javascript">myvar="hi there";</script>');

When I do this, the variable myvar is not recognized... If I add a simple alert(500); I get the alert.

Basically I just want to pass a variable from the extension the document to use it there.

Covered in [Building a Chrome Extension - Inject code in a page using a Content script](http://stackoverflow.com/questions/9515704/building-a-chrome-extension-inject-code-in-a-page-using-a-content-script) — wOxxOm, Nov 17 '15 at 17:36
actually you are right. jQuery can't do the job as it seems; but method 2 from your [link](http://stackoverflow.com/questions/9515704/building-a-chrome-extension-inject-code-in-a-page-using-a-content-script) does — musicman, Nov 17 '15 at 18:06

score -1 · Answer 1 · answered Nov 17 '15 at 17:20

-1

add var

$("body").append('<script type="text/javascript">var myvar="hi there";</script>');

answered Nov 17 '15 at 17:20

lordkain

I'd be glad if it was that easy. Not working – musicman Nov 17 '15 at 17:21
hehe if i do this from console it is working, youre version also works.... when do you inject / execute the code – lordkain Nov 17 '15 at 17:22

1 Answers1