对象是类型＆＃x27;未知＆＃x27;关于承诺的打字稿

发布于 2025-02-13 20:49:04 字数 472 浏览 1 评论 0原文

我有一个简单的函数，该功能作为参数的函数并返回一个新功能。当调用返回的函数红波信息：const响应：未知对象类型为'

export function fetchCount(amount: number) {
  return new Promise(resolve => setTimeout(() => resolve({ data: amount }), 500));
}

export const incrementAsync = createAsyncThunk('counter/fetchCount', async (amount: number) => {
  const response = await fetchCount(amount);
  return response.data; // red wave info under response
});

unknown.ts（2571）时，我得到的对象是“未知”类型

原文

I have a simple function that takes a function as it's argument and returns a new function. I get Object is of type 'unknown' when calling the returned function

export function fetchCount(amount: number) {
  return new Promise(resolve => setTimeout(() => resolve({ data: amount }), 500));
}

export const incrementAsync = createAsyncThunk('counter/fetchCount', async (amount: number) => {
  const response = await fetchCount(amount);
  return response.data; // red wave info under response
});

red wave info:const response: unknown Object is of type 'unknown'.ts(2571)

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请叫√我孤独 2025-02-20 20:49:04

Promise＆lt; t＆gt;是一种通用类型，在您的情况下不能推断该类型，因此您需要提供该通用类型参数：

export function fetchCount(amount: number) {
  return new Promise<{data: number}>(
    (resolve) => setTimeout(() => resolve({ data: amount }), 500));
}

Promise<T> is a generic type and the type cannot be inferred in your case, so you'll need to provide that generic type argument:

export function fetchCount(amount: number) {
  return new Promise<{data: number}>(
    (resolve) => setTimeout(() => resolve({ data: amount }), 500));
}

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