@rep2recall/r2r-mongo/dist/util.js

R2r format engine for Rep2Recall

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const crypto_1 = __importDefault(require("crypto"));
function generateSecret() {
    return new Promise((resolve, reject) => {
        crypto_1.default.randomBytes(48, (err, b) => {
            if (err) {
                return reject(err);
            }
            resolve(b.toString("base64"));
        });
    });
}
exports.generateSecret = generateSecret;
function shuffle(a) {
    for (let i = a.length - 1; i > 0; i--) {
        const j = Math.floor(Math.random() * (i + 1));
        [a[i], a[j]] = [a[j], a[i]];
    }
    return a;
}
exports.shuffle = shuffle;
function chunk(array, size) {
    var results = [], length = Math.ceil(array.length / size);
    for (var i = 0; i < length; i++) {
        results.push(array.slice(i * size, (i + 1) * size));
    }
    return results;
}
exports.chunk = chunk;
Array.prototype.distinctBy = function (mapFn) {
    const uniqueKeys = new Set(this.map(mapFn));
    return this.filter((el) => uniqueKeys.has(mapFn(el)));
};
Array.prototype.mapAsync = async function (mapFn) {
    return await Promise.all(this.map(async (value, index, array) => {
        try {
            return await mapFn(value, index, array);
        }
        catch (e) {
            throw e;
        }
    }));
};