if (typeof dataLayer !== "undefined") {
dataLayer.push({
"ecommerce": {
"currency": "CNY",
"impressions": [
{
"id": "14807",
"name": "Trek 头管徽标",
"price": "75.0",
"brand": "Trek",
"category": "Bike frame parts",
"variant": "greylight",
"list": "CATEGORY",
"position": 1
}
]
}
});
} else {
console.log("dataLayer");
}