I am curious to know if any research has been conducted regarding the
efficiency of having a single (large) .js file downloaded for a
webpage compared to several smaller .js files.
For example in my web pages I often include the scripting code
<script language="javascript" type="text/javascript"
src="ascript.js"></script>
which contains all the code for a given function, i.e. the main
function and any subsidiary functions.
I have developed a few library functions (leftString, rightString,
etc.) and these can be invoked by functions in other .js files, so I
would have something like
<script language="javascript" ... src="libs.js"></script>
<script language="javascript" ... src="ascript.js"></script>
I'm just wondering if there is any difference in download time when
the HTML has to download these separate .js files rather than a single
one.
Even though the use of broadband is spreading I still like to keep my
web pages as efficient as possible, not everyone has broadband after
all, some still use dial-up connections.
Does anybody know?