Require.js ready vendor prefix extractor

vendorPrefix.js

vendor.prefix = (function () {
    'use strict';
    
    var styles  = window.getComputedStyle(document.documentElement, '')
      , pre     = (Array.prototype.slice
            .call(styles)
            .join('') 
            .match(/-(moz|webkit|ms)-/) || (styles.OLink === '' && ['', 'o'])
        )[1]
      , dom     = ('WebKit|Moz|MS|O').match(new RegExp('(' + pre + ')', 'i'))[1];

    return {
        dom:        dom,
        lowercase:  pre,
        css:        '-' + pre + '-',
        js:         pre[0].toUpperCase() + pre.substr(1)
    };

})();