Besides the obvious benefit of placing the custom javascript files (or any other resource files) in a document library, such as:

• versioning, history, tracking
• easy to change/edit

Is there any other benefits?

Performance? Page Load time?

Are there any cons?

PS. This is not meant as a question on number of files / resources has a general HTTP performance, but rather this specific SharePoint issue on the file location.

http://site/_layouts/myjavascript.js

vs.

http://site/DocumentLibrary/myjavascript.js

Besides the obvious benefit of placing the custom javascript files (or any other resource files) in a document library, such as:

• versioning, history, tracking
• easy to change/edit

Is there any other benefits?

Performance? Page Load time?

Are there any cons?

PS. This is not meant as a question on number of files / resources has a general HTTP performance, but rather this specific SharePoint issue on the file location.

http://site/_layouts/myjavascript.js

vs.

http://site/DocumentLibrary/myjavascript.js

• javascript
• sharepoint

3 Answers 3

If you are storing the javascript in a library then it is stored in the database.

It means that:

1. It has version control

2. It is slower then the filesystem (unless you are using blob cache)

3. It will be included in any backups you do of your sharepoint install (stsadm for example)

4. It will be accessible (changeable) by anyone with access to the document library (easier to maintain, less secure)

5. Client side caching will behave differently (you'll need to configure it, it's a bit plicated for MOSS content vs filesystem content)

We decided to store it in the 12 hive as it feels better in regards to code vs. data separation. If you consider this file to be data then store it in MOSS, if you consider it to be "code" then store it in the filesystem.

have you considered using google to host javascript files (such as jquery)

• this benefits from using their bandwidth for downloading the files
• faster page loading times
• higher availability
• chances are high that your javascript file is already cached on the user's machine

Document Library

Pros - Automatic delivery to all web front ends, easy, versioning, history, ease of editing

Cons - Slower (it's in the database),Security issues brought about by accidentally securing the item's site, login prompts if you are referencing the js via absolute URL your users may get repeated login prompts

Plasing the js file in the 12 hive

Pros- faster, no issues with the aformentioned security prompts

Cons - Not automagically delivered to all of your web front ends, possible AAM issues, technically you are not supposed to modify files in the 12 hive