challenge-algorithms-v2.0-s.../node_modules/p-locate/index.d.ts

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2022-10-27 18:51:35 +00:00
declare namespace pLocate {
interface Options {
/**
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;
}
}
declare const pLocate: {
/**
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 = require('path-exists');
import pLocate = require('p-locate');
const files = [
'unicorn.png',
'rainbow.png', // Only this one actually exists on disk
'pony.png'
];
(async () => {
const foundPath = await pLocate(files, file => pathExists(file));
console.log(foundPath);
//=> 'rainbow'
})();
```
*/
<ValueType>(
input: Iterable<PromiseLike<ValueType> | ValueType>,
tester: (element: ValueType) => PromiseLike<boolean> | boolean,
options?: pLocate.Options
): Promise<ValueType | undefined>;
// TODO: Remove this for the next major release, refactor the whole definition to:
// declare function pLocate<ValueType>(
// input: Iterable<PromiseLike<ValueType> | ValueType>,
// tester: (element: ValueType) => PromiseLike<boolean> | boolean,
// options?: pLocate.Options
// ): Promise<ValueType | undefined>;
// export = pLocate;
default: typeof pLocate;
};
export = pLocate;