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Webshims Lib is a modular capability-based polyfill-loading library http://aFarkas.github.com/webshim/demos/index.html
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Webshims Lib - The polyfilling, capability based loading JavaScript Library

Features

General Principles:

  • HTML5 compliant: correctly and accurately implemented (HTML5) Markup-, JS- and DOM-APIs
  • capability based loading: extremely lightweight in modern browsers
  • cross-browser support: All A-Graded browsers including latest version of Opera are tested
  • extendable: if we have not implemented a feature you want, you can easily implement it on your own

Implemented Features:

  • HTML5 shiv and innerShiv solution including basic CSS-support
  • canvas
  • HTML5 form features including: constraint validation and form widgets (input[type="range"], input[type="date"], input[type="number"], output, input[list]/datalist)
  • HTML5 audio/video/track implementation
  • interactive elements: summary/details
  • JSON (stringify and parse)
  • localStorage/sessionStorage
  • geolocation
  • ECMAScript 5 / JavaScript 1.8.5 features

How To Use


<script src="js/jquery.js"></script>
<script src="js/Modernizr-yepnope.js"></script> 
<script src="js-webshim/minified/polyfiller.js"></script> 

<script> 
    //load and implement all unsupported features 
    $.webshims.polyfill();

    //or only load a specific feature
    //$.webshims.polyfill('geolocation json-storage');
</script>

  • Wait till everything has been loaded and then use it:

<script> 
    $(function(){
        //work with JSON and localStorage 
        var userData = JSON.parse(localStorage.getItem('userData')) || {visits: 0};
        $('#visits').html(userData.visits);
        //...
    });
</script>

More information and demos here.

License

The Webshims Lib core is licensed under the MIT-License. Note: Webshims Lib uses many great third party scripts.

Questions?

If you have any questions, please feel free to ask them on the Using jQuery Plugins forum.

Please tag your questions with 'webshims' or 'polyfill'.

Release 1.9.3

  • add option to use alternative jarisplayer as mediaelement fallback
  • fixed track[default] in IE10 (initial copying of track.mode)
  • implement .prop-checked in browsers, which do not support the :checked selector
  • implement .user-error selector
  • limit track.kind property using addTextTrack to only known values

Release 1.9.2

  • implemented input[type="time"]
  • allow dynamically changing label/kind/srclang of existing track elements
  • added removeCue to texttrack API
  • added screenreader-support for track[kind="descriptions"]
  • improved change events for input[type=range] and spinbutton controls (input[type=number])

Release 1.9.1

  • added onaddtrack/onremovetrack events to TextTrackList interface
  • datalist polyfill is now default for forms feature
  • added swedish locale (thx to @leon)
  • improved errorbubble style
  • updated JW player

Release 1.9.0

  • basic but powerfull track-element including corresponding DOM- and JS-API
  • input[form] support: for associating form field using the form attribute (input[form]/select[form] ...)
  • implemented youtube iframe support for video element
  • better input widget calculation in responsive websites
  • elements property for fieldset element
  • allow placeholder on input[type="date"]. (as a hint for the dateformat, but use data-placeholder, instead of placeholder!)
  • added opus -> mime-type detection for audio
  • fixed regression for using an initial value with input[type="date"]. (introduced in 1.8.11)
  • update Modernizr to 2.6.2/jQuery UI to 1.8.23
  • jQuery 1.6.x not supported anymore, use 1.7.2+ or 1.8.1+ (but we will have legacy support for webshims 1.8.x)
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