javascript - 每次刷新页面时，我可以将json数据存储在数组中吗

Question

当我回到以前的路线时，我在这一行中收到错误 meals = data.meals.map(meal => meal);：

类型错误，无法读取 null 的属性“地图”

request(options, (error, response, body) => {
    const data = JSON.parse(response.body);

    if (error) {
        console.log(error);
    } else {
        const meals = data.meals.map(meal => meal);
        console.log(response.statusCode);
        res.render("result", { categories: meals, title: category });
    }
});