feat(utils): 新增 pMap

src/utils/index.ts

@@ -52,6 +52,7 @@ export * from './parseUrlQueryString'
 export * from './pascalCase'
 export * from './pickStrict'
 export * from './placeKitten'
+export * from './pMap'
 export * from './readFile'
 export * from './RichUrl'
 export * from './run'

src/utils/pMap.test.ts

@@ -0,0 +1,12 @@
+import { expectType } from '../dev'
+import { pMap } from './pMap'
+
+describe('pMap', () => {
+  test('表现正常', async () => {
+    const res = await pMap([1, 2], item =>
+      item === 1 ? item : Promise.resolve(item),
+    )
+    expectType<typeof res, number[]>()
+    expect(res).toEqual([1, 2])
+  })
+})

src/utils/pMap.ts

@@ -0,0 +1,20 @@
+/**
+ * `Promise.all(data.map(callback))` 的简写。
+ *
+ * @param list 列表数据
+ * @param callback 回调
+ * @example
+ * ```typescript
+ * const res = await pMap(
+ *   [1, 2],
+ *   i => Promise.resolve(i),
+ * )
+ * // => [1, 2]
+ * ```
+ */
+export function pMap<T, R>(
+  list: T[],
+  callback: (item: T, index: number, list: T[]) => R | PromiseLike<R>,
+): Promise<R[]> {
+  return Promise.all(list.map(callback))
+}