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- export interface Options {
- /**
- The number of concurrently pending promises returned by `tester`.
- Minimum: `1`
- @default Infinity
- */
- readonly concurrency?: number;
- /**
- Preserve `input` order when searching.
- Disable this to improve performance if you don't care about the order.
- @default true
- */
- readonly preserveOrder?: boolean;
- }
- /**
- Get the first fulfilled promise that satisfies the provided testing function.
- @param input - An iterable of promises/values to test.
- @param tester - This function will receive resolved values from `input` and is expected to return a `Promise<boolean>` or `boolean`.
- @returns A `Promise` that is fulfilled when `tester` resolves to `true` or the iterable is done, or rejects if any of the promises reject. The fulfilled value is the current iterable value or `undefined` if `tester` never resolved to `true`.
- @example
- ```
- import {pathExists} from 'path-exists';
- import pLocate from 'p-locate';
- const files = [
- 'unicorn.png',
- 'rainbow.png', // Only this one actually exists on disk
- 'pony.png'
- ];
- const foundPath = await pLocate(files, file => pathExists(file));
- console.log(foundPath);
- //=> 'rainbow'
- ```
- */
- export default function pLocate<ValueType>(
- input: Iterable<PromiseLike<ValueType> | ValueType>,
- tester: (element: ValueType) => PromiseLike<boolean> | boolean,
- options?: Options
- ): Promise<ValueType | undefined>;
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