blob: 02988aaf89f999ed0c622086f3a18f4aa5d64fd6 [file] [log] [blame]
export interface Limit {
/**
* @param fn - Promise-returning/async function.
* @param arguments - Any arguments to pass through to `fn`. Support for passing arguments on to the `fn` is provided in order to be able to avoid creating unnecessary closures. You probably don't need this optimization unless you're pushing a lot of functions.
* @returns The promise returned by calling `fn(...arguments)`.
*/
<Arguments extends unknown[], ReturnType>(
fn: (...arguments: Arguments) => PromiseLike<ReturnType> | ReturnType,
...arguments: Arguments
): Promise<ReturnType>;
/**
* The number of promises that are currently running.
*/
readonly activeCount: number;
/**
* The number of promises that are waiting to run (i.e. their internal `fn` was not called yet).
*/
readonly pendingCount: number;
}
/**
* Run multiple promise-returning & async functions with limited concurrency.
*
* @param concurrency - Concurrency limit. Minimum: `1`.
* @returns A `limit` function.
*/
export default function pLimit(concurrency: number): Limit;