我試圖迭代存儲在商店中的數組。 我得到這個紅框錯誤:can't find variable: city.
這是一個正確的方式來循環reactJS中的數組?找不到變量:x - 通過ReactJS中的數組循環遍歷
class CitiesPage extends Component {
render() {
return (
<View>
<Text>Cities Info:</Text>
<div>
{this.props.citiesArr}.map(function(city) {
<li key={city}>{city}</li>
});
</div>
</View>
);
}
}
我的店裏面陣列看起來像這樣:
const STORE_STATES = {
citiesArr: [
{city:'Rome', population:'34454'},
{city:'Paris', population:'45678'},
{city:'London', population:'2334'},
{city:'Milan', population:'23456'},
{city:'Amsterdam', population:'1234'},
{city:'Dublin', population: '234'},
{city:'Valencia', population: '2345'},
{city:'Ankara', population: '3456'}
]
};
我認爲this.props.citiesArr.cities不存在。陣列是城市本身,我錯了嗎?哦,我看到你現在編輯它。 – avilac