@graphql-tools/graphql
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Fork of GraphQL.js
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text/typescript
import type { PromiseOrValue } from './PromiseOrValue.cjs';
/**
* 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>;