jQuery 获取页面li数组并删除不在数组中的key

var getSaleModels = function(brand_id){if(brand_id){var li = $(".pinpai-chexing"+brand_id+" li");var arr = new Array();if (li.length > 0){li.each(function(index, element) {arr.push($(element).children("a").attr("data-value"));});}}return arr;}

//获取车型var getModel = function (id){var arr = getSaleModels($("#brand_id").attr("data-value"));$.getJSON("/interface/CarBase/getTuangouModels/",{id:$("#brand_id").attr("data-value")},function(json){var models = $(".models");var option = "";$(models).find("li").empty(); //清空原有的选项if(json){$.each(json.data,function(index,array){//删除停售的车型if($.inArray(array['model_id'],arr)!=-1){if(!index){$("#model_id").attr("data-value",array['model_id']);$("#model_id").text(array['model']);}option += "<li data-value='"+array['model_id']+"'";option += ">"+array['model']+"</li>";}});models.append(option); }});return false;}