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Old 02-17-2015, 10:16 AM
NickCUK NickCUK is offline
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Simplest javascript polyfill to emulate HTML5 <details> tag in all browsers

I would like to have expanding paragraphs aka the HTML5 tag. However most browsers do not support this yet so we would need a javascript fallback of some sort. Question is how best to do this.

It seems there are JQuery solutions to this but my initial thoughts are that this is a large overhead to solve a small problem. However in reality it may be that most browsers would already have the jquery library cached in which case it is no overhead at all. I guess that would only work if we linked to an external jquery CDN, not a locally served one.

Alternatively there are smaller javascript solutions but they would not already be cached by the local browser.

And what about Modernizr is that common enough that it would likely already be cached?
 
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Old 02-19-2015, 10:55 AM
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raicabogdan raicabogdan is offline
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When you say *cached*, are you perhaps thinking you're actually having access to js libraries/files from other sites? Because that's not possible.

The cache works per domain, so if you provide a specific js file and it is cached by the browser, only your site will be able to read that cached file. The overhead is also small, almost negligible for jquery at least.

As for your questions, Modernizr and jquery are two options that you can very well do what you need, depends really on what you're trying to do. Personally I would simply use jquery and just change CSS values based on specific events to replicate the html5 effect.

You can probably do it from javascript directly and do only the specific part you require (have done that before, instead of using libraries with lots of options, and I was only using 1 or two from it)
 
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