@shanyue/promise-utils/dist/lib/map.js

Userful promise utils, include map, filter, retry and sleep

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.map = void 0;
const limit_1 = require("./limit");
function map(it, mapper, { concurrency = Infinity } = {}) {
    const limit = new limit_1.Limit(concurrency);
    const list = Array.from(it);
    const listJob = list.map((item, index) => {
        return limit.build(async () => {
            // Item may be promise
            const x = await item;
            const result = mapper(x, index);
            return result;
        });
    });
    return Promise.all(listJob);
}
exports.map = map;
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