🧩 Finds the first item in an async iterator that matches a predicate.

Syntax

TypeScript
import { findIterAsync } from '@opentf/std';

findIterAsync<T>(iter: AsyncIterable<T>, fn: (val: T) => boolean | Promise<boolean>): Promise<T | undefined>

Parameters

  • iter: The async iterable to search.

  • fn: The predicate function.

Returns

A promise that resolves to the first matching item, or undefined.

Examples

TypeScript
async function* gen() { yield 1; yield 2; }
await findIterAsync(gen(), x => x > 1) //=> 2
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