| import type { PromiseOrValue } from './PromiseOrValue'; |
| /** |
| * Similar to Array.prototype.reduce(), however the reducing callback may return |
| * a Promise, in which case reduction will continue after each promise resolves. |
| * |
| * If the callback does not return a Promise, then this function will also not |
| * return a Promise. |
| */ |
| export declare function promiseReduce<T, U>( |
| values: Iterable<T>, |
| callbackFn: (accumulator: U, currentValue: T) => PromiseOrValue<U>, |
| initialValue: PromiseOrValue<U>, |
| ): PromiseOrValue<U>; |