ArtemAvramenko

// Copyright (c) Artem Avramenko. All rights reserved.
// Licensed under the MIT license. See license.txt for details.

/** 
 * Returns an integer power of ten with maximum accuracy and performance
 */
const pow10 = (() => {
    const precalc = [] as number[];
    for (let i = -323; i < 309; i++) {
        precalc.push(+('1e' + i));

ArtemAvramenko

X-Frame-Options
X-Http-Method-Override
X-Csrf-Token
X-Real-IP
X-Forwarded-For
X-Forwarded-Host
X-Forwarded-Proto
X-Original-For
X-Original-Host
X-Original-Proto

ArtemAvramenko

using System;
using System.Collections.Concurrent;
using System.Diagnostics.CodeAnalysis;
using System.Threading;

namespace ArtemAvramenko.Collections;

/// <summary>
/// Queue/cache of items that are stored for a limited period of time.
/// </summary>

ArtemAvramenko

function readTextFromFile(file, maxMegabytes = 1) {
    const reader = new FileReader();
    return new Promise(resolve => {
    
        // check file size
        if (!file || !file.size) {
            resolve({ error: `The file cannot be empty` });
            return;
        }
        if (file.size > maxMegabytes * 0x100000) {

ArtemAvramenko

DECLARE
	@Schema NVARCHAR(MAX),
	@Name NVARCHAR(MAX),
	@Sql NVARCHAR(MAX)
DECLARE TableCursor CURSOR FOR
	SELECT TABLE_SCHEMA, TABLE_NAME
	FROM INFORMATION_SCHEMA.TABLES
	WHERE TABLE_TYPE = 'BASE TABLE'
OPEN TableCursor
WHILE 1 = 1

ArtemAvramenko

module.exports = function getPlural(name) {
    const match = (r, n, e) => r.test(name) && (n ? name.slice(0, -n) : name) + e;
    return match(/sis$/, 2, 'es') // analyses, diagnoses
        || match(/(?:[^fgmq][aeoi]|[fglm][eio]|[^aeijoqsuvxz])s$/, 0, '') // physics, stairs
        || match(/(?:s|x|z|[cs]h|ato)$/, 0, 'es') // kisses, tomatoes
        || match(/(?:[^aeiou]|qu)y$/, 1, 'ies') // ladies, tries
        || match(/[^ch][ieo][ln]ey$/, 2, 'ies') // smilies, monies
        || match(/(?:[aeou]l|[eo]a|ar)f$/, 1, 'ves') // scarves, shelves
        || match(/[^defr]ife$/, 2, 'ves') // knives, wives
        || name + 's';

ArtemAvramenko

Number of elements	Reliability of every single element	Overall probability of failure
100	99%	>60%
1000	99.9%	>60%
10000	99.99%	>60%

Number of elements	Reliability of every single element	Overall probability of failure
100	99.99%	<1%

ArtemAvramenko

 public class LargeBitArray
 {
     private readonly int _bucketSize;
     private readonly long _capacity;

     public LargeBitArray(long capacity = int.MaxValue) // ~272 MB for 2^31 values
     {
         if (capacity < 1 || capacity > (long)2e18)
         {
             throw new ArgumentException("Capacity is out of range");

ArtemAvramenko

/**
 * This small function allows you to distribute your script as a single file, without
 * requiring a separate package.json. When running a script through a node, the dependencies
 * that are installed will not affect neighboring scripts or global packages.
 * @summary Installs dependencies in the local dotfiles folder
 */
const installDependencies = dependencies => {
    const fs = require('fs');
    const dependenciesPath = './.npm-' + __filename.match(/[^\\/]+$/)[0];
    fs.existsSync(dependenciesPath) || fs.mkdirSync(dependenciesPath);

ArtemAvramenko

// https://stackoverflow.com/questions/17975609/lazy-load-properties-with-async/41141728#41141728

#nullable enable
    public class AsyncLazy<T>
    {
        private Func<Task<T>>? _valueFactory;

        private volatile SemaphoreSlim? _semaphore = new(1, 1);

        private volatile Boxed? _boxed;