JSON鑑於收到但無法呈現在選擇選項中玉

Question

我有以下看法在玉的地方顯示JSON城市，但循環中時，得到的cityName它是空

p #{cities} 
    p 
    label(for='from') From 
    select#sourcecity(name="sourcecity", required="required") 
     each sourceCity in cities 
     option(value="#{sourceCity.cityId}") #{sourceCity.cityName} 

p＃{城市}

[{"cityId":79,"cityName":"Lenggong"},{"cityId":64,"cityName":"Gemas"},{"cityId":87,"cityName":"Jerteh"},{"cityId":36,"cityName":"LCCT"},{"cityId":95,"cityName":"Genting Highlands"},{"cityId":57,"cityName":"Pengkalan Kubor"},{"cityId":2,"cityName":"Kuala Lumpur"},{"cityId":3,"cityName":"Melaka"},{"cityId":15,"cityName":"Seremban"},{"cityId":28,"cityName":"Kangar"},{"cityId":63,"cityName":"Bahau"}] 

Answer 1

既然你似乎表明，p #{cities}呈現什麼看起來是一個對象，我認爲你傳遞一個JSON字符串到玉。

因此，像這樣：

res.render('page', { 
    cities : '[{"cityId":79,"cityName":"Lenggong"},...]' 
}); 

玉需要一個實際的對象要傳遞：

res.render('page', { 
    cities : JSON.parse('[{"cityId":79,"cityName":"Lenggong"},...]') 
});