[英]How to return a class from array.Map with typescript?
如何使底部语句返回 StoreModel 数组? 接口和映射数组之间的模型和存储的签名匹配。
interface StoreModels {
model: string | undefined;
store: string;
}
const proposedStoreValues = proposedStores.map(({ model, store }) => ({ model, store }));
const proposedStoreValues = proposedStores.map(
({model, store}: StoreModels) => ({
model,
store
})
)
如评论中所示,您只需在箭头函数中添加StoreModels
的签名:
interface StoreModels {
model: string | undefined;
store: string;
}
const proposedStoreValues = proposedStores.map(({ model, store }): StoreModels => ({ model, store }));
参考: https : //www.typescriptlang.org/docs/handbook/functions.html
您可以将返回类型添加到这样的箭头函数中: (): ReturnVal => something
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