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L.js

another js loader

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l.js is another simple/tiny javascript/css loader

features

examples

loading ljs and another libs with one single tag

<script src="l.js">
    ljs.load('myLib.js',function(){ /* your callback here */});
</script>

loading some scripts in parrallel others in order

<script src="l.js">
    ljs
        .load('myLib.js')
        .load('myRequiredLib.js','myDependentLib.js',function(){ /* your callback here */})
    ;
</script>

second load will be executed in parrallel of first load but myDependentLib.js won't load before myRequireLib.js is laoded

<script src="l.js">
    ljs.load(['myLib.js','myRequiredLib.js'],'myDependentLib.js',function(){ /* your callback here */});
</script>

this will load myLib.js and myRequiredLib.js in parrallel and wait for them before loading myDependentLib.js

using some aliases for simpler loading

<script src="l.js?checkLoaded"> // <- adding checkLoaded to the url will dumbly check already inserted script/link tags
    ljs
        .addAliases({
            jQuery:'http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js#jqueryId' // <- script tag will have attribute id=jqueryId
            ui:[
                'jQuery'
                ,'https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js'
                ,'myUITheme.css'
            ]
        })
        .load('ui',function(){
            /* work with both jquery and jquery-ui here */
        })
    ;
</script>

define a fallback url

l.js also support a fallback url for javascript files in case you want to try to get the resource from another location on loading failure You can define this fallback url parameter like you define ids. The difference is you will prefix with #= instead of # alone

<script src="l.js">
    ljs.load('http://domain.com/myLib.js#=/myfallback.js#myid',function(){
        /*
            generated script tag will have myid as id and will try to load /myfallback.js if it fail to load http://domain.com/myLib.js
        */
    });
</script>

this piece of code is dual licenced under MIT / GPL Hope this help, code review, suggestions, bug reports are welcome and appreciated.