[IPython-dev] Sourcing a javascript file from a notebook, and writing local javascript

[Matthias Bussonnier]

Le 31 mai 2014 à 18:41, Andrew Gibiansky a écrit :

> I'm not an IPython dev, but I believe that embedding JS into a Markdown cell has indeed been deprecated, for security reasons. I now experiment by putting things in custom.js.

Technically, we just never had the time to strip JS from markdown cell on 1.x, so it was not really supported.
But yes, now it is sanitized and removed. 

> 
> Code in custom.js I think has all the privileges that normal Javascript has, so you should be free to load external files and scripts. You can include your own JS files using require.js:

There should be a nbextension folder in ~/.ipython to store extra javascript

> 
> require(['/static/custom/my_file.js']);

this will fail in case where people serve IPython notebook with a prefix. 
you could use 
IPython.load_extensions('myext');

that will do the right thing, and is a small wrapper around require. 
--
M

> 
> In a similar way you should be able to load foreign JS files, I think; I don't know require.js very well though. You could probably also just append a <script> tag to the DOM with a proper src attribute :)
> 
> -- Andrew Gibiansky
> 
> 
> On Sat, May 31, 2014 at 5:05 AM, Clare Sloggett <claresloggett at gmail.com> wrote:
> Hi all,
> 
> I was playing around with embeddable javascript libraries and seeing if I could make use them from a Notebook. My first attempt was to try the simplest thing possible; embed it in a markdown cell. The javascript I was trying to embed wants to both source an external file, and then use it via some local javascript code, like
>    <script language="javascript" src="http://some-url/library.js"></script>
>    <script language="javascript">
>    ... code ...
>    </script>
> 
> In Notebook 1.x, the local code executes but throws an error about undefined variables, suggesting that the external javascript file was not loaded. Is this expected?
> 
> In Notebook 2.0, so far as I can tell, none of it executes at all.
> 
> Am I right in thinking that embedding Javascript into a markdown cell has been deprecated? Do I need to put it into custom.js instead? And, will I be able to source the remote file from there, or will I need to make that library local as well?
> 
> Sorry if this is a naive question, a lot of aspects of this are new to me. I'm just looking for the most straightforward and lightweight approach so I can experiment with my code.
> 
> Thanks in advance,
> Clare
> 
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