Re: Multiple JS Files or Single JS File

Maninder, Singh wrote:
> Hi Everyone,
>
> Just wanted to take some guidance on the following- 
>
> In my AJAX appication I have a number of js files -
>
> 1. Some are library specific and hence in different js files.
> 2. Some are application specific.
>
> In case of application specific files, the only reason why I separated the js content in 3-4 files is because it is easier to maintain & makes more sense to keep them separate.
> For eg: Some functions are for easy manipulations & are generic so I moved them to utils.js, some are a hash of error messages so I moved them to errorMessages.js and so on.
>
>   
If you find that this system works for you, than go ahead and do it. In 
the end it's what makes you most comfortable that counts.

> These 3-4 js files are not huge, they must be around 4-5KB or even less. But, they have been broken up because of the above reason.
>
> Now coming to my question - is this is a good thing to do or a bad thing?
>
> Pros (of having mulitple files) -
> 1. Easier maintainence
> 2. If code is updated in one file, we don't need to download the huge js (sigma of all js's) again
>
>   
I think you need to add there "If the code is reusable". meaning, that 
if you construct a code that you can use in more than one page than you 
save bandwidth and the code is more easily maintained.

> Cons (of having multiple files) -
> 1. Would the browser open 3-4 different connections for downloading them? 
> Since most of my userbase is on dialup, every connection could be costly as compared to only one connection in case of 1 huge js file.
>
>   
I don't think that this makes much of a difference. the same thing will 
happened if there will be one more image on the page.

> Well I have been referring to it as a huge js file but it won't actually be huge (wuld be around 30KB..but looks huge compared to 4-5KB :)
>
> Thoughts?
>
> Thank you,
> Mandy.
>
>
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