parallelo/dist/index.js

A lightweight utility library for running asynchronous tasks in parallel with controlled concurrency and result tracking.

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var index_exports = {};
__export(index_exports, {
  parallelo: () => parallelo
});
module.exports = __toCommonJS(index_exports);
async function parallelo(items, concurrency, fn) {
  const queue = [...items];
  const results = [];
  const errors = [];
  const worker = async () => {
    while (queue.length > 0) {
      const item = queue.shift();
      if (item !== void 0) {
        try {
          const result = await fn(item);
          results.push({ item, result });
        } catch (error) {
          errors.push({ item, error });
        }
      }
    }
  };
  const workers = Array.from({ length: concurrency }, () => worker());
  await Promise.all(workers);
  return { results, errors };
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  parallelo
});