lodash

从json中解析出vid

function scene2vidString(scene){
        function getSrc(iframeCode){
            return $(iframeCode)[0].src;
        }
        function getVidFromQQLink(qqlink){
            return qqlink.match(/vid=(\w+)/)[1];
        }
        function scene2vidArrayUnique(scene){
            return _.chain(scene.list)
                        .pluck("elements")
                        .flatten()
                        .where({"type": "v"})
                        .pluck("properties.src")
                        .map(getSrc)
                        .map(getVidFromQQLink)
                        .union()
                        .value();
        }
        function join(array){
            return array.join("|");
        }
        return join(scene2vidArrayUnique(scene));
    }