external script usage in javascript

Question

Can i use external script only with .js extensions? Can't i use it when using the extension as .htm?

It seems to me you want to include a HTML file within an existing HTML file? — Lloyd
– Lloyd, Commented Dec 22, 2010 at 12:27
@Abkutty - is @Lloyd correct that you want to include HTML fragments? or do you just want to include dynamically generated JavaScript and thus wish to use something like <script src="top_products.php"></script> — scunliffe
– scunliffe, Commented Dec 22, 2010 at 12:31
@Abkutty: Then your question should be totally different: not "external script usage" but "including snippet of HTML within current page". — Marcel Korpel
– Marcel Korpel, Commented Dec 22, 2010 at 13:36

Marcel Korpel · Accepted Answer · 2010-12-22 12:26:34Z

2

You can. What matters is the MIME type with which the script is served (by the server). It should be

application/javascript

or

application/x-javascript

This is used by certain PHP scripts that have the .php extension, but actually serve JavaScript (not that I like this, but it's possible).

answered Dec 22, 2010 at 12:26

Marcel Korpel

21.8k6 gold badges63 silver badges80 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

anddoutoi · Accepted Answer · 2010-12-22 12:26:37Z

0

Theoretically the extension is not important, it´s the MIME type the server serves the resource that´s important.

In practice there has existed issues with UAs from vendors (IE) that has been file extension maniacs.

Another issue is if you serve the page from the file-protocol.

So my advice, stick with .js

answered Dec 22, 2010 at 12:26

anddoutoi

10.1k4 gold badges31 silver badges28 bronze badges

qwertymk · Accepted Answer · 2010-12-22 13:02:38Z

0

Most jsonp is done with an external php file. Even YQL doesn't use the js extension. So yes you are able to and in fact most people do.

answered Dec 22, 2010 at 13:02

qwertymk

35.6k31 gold badges127 silver badges184 bronze badges