function getBrowserStyleEquivalents()

in Canvas/CanvasSimple/lib/winjs-4.0.1/js/base.js [4788:4860]
65 lines of code
5 McCabe index (conditional complexity)

    function getBrowserStyleEquivalents() {
        // not supported in WebWorker
        if (!_Global.document) {
            return {};
        }

        var equivalents = {},
            docStyle = _Global.document.documentElement.style,
            stylePrefixesToTest = ["", "webkit", "ms", "Moz"],
            styles = ["animation",
                "transition",
                "transform",
                "animation-name",
                "animation-duration",
                "animation-delay",
                "animation-timing-function",
                "animation-iteration-count",
                "animation-direction",
                "animation-fill-mode",
                "grid-column",
                "grid-columns",
                "grid-column-span",
                "grid-row",
                "grid-rows",
                "grid-row-span",
                "transform-origin",
                "transition-property",
                "transition-duration",
                "transition-delay",
                "transition-timing-function",
                "scroll-snap-points-x",
                "scroll-snap-points-y",
                "scroll-chaining",
                "scroll-limit",
                "scroll-limit-x-max",
                "scroll-limit-x-min",
                "scroll-limit-y-max",
                "scroll-limit-y-min",
                "scroll-snap-type",
                "scroll-snap-x",
                "scroll-snap-y",
                "touch-action",
                "overflow-style",
                "user-select" // used for Template Compiler test
            ],
            prefixesUsedOnStyles = {};

        for (var i = 0, len = styles.length; i < len; i++) {
            var originalName = styles[i],
                styleToTest = getCamelCasedName(originalName);
            for (var j = 0, prefixLen = stylePrefixesToTest.length; j < prefixLen; j++) {
                var prefix = stylePrefixesToTest[j];
                var styleName = addPrefixToCamelCasedName(prefix, styleToTest);
                if (styleName in docStyle) {
                    // Firefox doesn't support dashed style names being get/set via script. (eg, something like element.style["transform-origin"] = "" wouldn't work).
                    // For each style translation we create, we'll make a CSS name version and a script name version for it so each can be used where appropriate.
                    var cssName = addPrefixToCSSName(prefix, originalName);
                    equivalents[originalName] = {
                        cssName: cssName,
                        scriptName: styleName
                    };
                    prefixesUsedOnStyles[originalName] = prefix;
                    break;
                }
            }
        }

        // Special cases:
        equivalents.animationPrefix = addPrefixToCSSName(prefixesUsedOnStyles["animation"], "");
        equivalents.keyframes = addPrefixToCSSName(prefixesUsedOnStyles["animation"], "keyframes");

        return equivalents;
    }