link-checker-cli/dist/promisePool.js

CLI tool to check for broken links in a website or project

class PromisePool {
    constructor(options) {
        this.results = [];
        this.errors = [];
        this.process = async () => {
            const promises = new Set();
            for (const item of this.items) {
                const promise = this.handler(item)
                    .then((result) => {
                    this.results.push(result);
                    return result;
                })
                    .catch((error) => {
                    this.errors.push(error);
                    throw error;
                })
                    .finally(() => promises.delete(promise));
                promises.add(promise);
                if (promises.size >= this.concurrency) {
                    await Promise.race(promises);
                }
            }
            await Promise.all(promises);
            return { results: this.results, errors: this.errors };
        };
        this.items = options.items;
        this.concurrency = options.concurrency;
        this.handler = options.handler;
    }
}
export function promisePool(options) {
    const pool = new PromisePool(options);
    return pool.process();
}