[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [IWorkerPool](./rc-js-util.iworkerpool.md) > [start](./rc-js-util.iworkerpool.start.md) ## IWorkerPool.start() method **Signature:** ```typescript start(): Promise; ``` **Returns:** Promise<number> The number of workers that started.