html - add javascript to page or external javascript file -


possible duplicate:
when should use inline vs. external javascript?

i have javascript variables use in javascript (ie. external javascript files)

this javascript variables page specific , varies per page , user.

is better have these in other javascript file meaning http request or including within html content of page, bloating page.

i separation want maximize performance, either increasing html page size or http request.

i ask question in terms of performance/optimization.

opinions on please?

you couple different ways. 1 way include data in object included main script , have object per page. like

var data = {  "page1": {   "title": "blah"  },  "page2": {   "title": "different blah",   "users": [...]  } }

alternatively config loader. in each html page include

<script src="loader.js" type="text/javascript"></script>

which contain this

// if page blog.html page equal blog var page = window.location.href.match(/\/(\w+).html/)[1]; var s = document.createelement("script"); s.src = "/path/to/javascript/" + page + ".js"; s.type = "text/javascript"; document.getelementsbytagname("head")[0].appendchild(s);

this load additional data specific page needs , if done in beginning work along side libraries equivalent of onready like

jquery(function() {  dostuff(); })

for method work need ensure data in each file uniform in data contains.

var pagedata = { ... };

these 2 methods should give bit think in coming solution.


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