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bitfields-lib

v1.0.4

Published

Библиотека для работы с флагами

Downloads

9

Readme

BitField Library

npm License Size

Библиотека для работы с битовыми флагами в TypeScript/JavaScript.

Особенности

  • 🔍 Удобное управление флагами
  • 📦 Миниатюрный размер (~1KB)

Установка

npm install bitfield-lib

или

yarn add bitfield-lib

Использование

Базовый пример:

import { BitField } from 'bitfields-lib'

const FLAGS = {
	READ: 1 << 0, // 0b0001
	WRITE: 1 << 1, // 0b0010
	EXECUTE: 1 << 2, // 0b0100
}

const perms = new BitField()

// Установка флагов
perms.set(FLAGS.READ | FLAGS.WRITE)

// Проверка
perms.contains(FLAGS.READ) // true
perms.contains(FLAGS.EXECUTE) // false

// Переключение
perms.toggle(FLAGS.EXECUTE)

Привязанные флаги:

const FilePermissions = BitField.withFlags({
	READ: 1 << 0,
	WRITE: 1 << 1,
	EXECUTE: 1 << 2,
})

const userPerms = new FilePermissions()
userPerms.set(FilePermissions.flags.READ | FilePermissions.flags.WRITE)

API

  • set(flag) - Устанавливает флаг
  • unset(flag) Снимает флаг
  • toggle(flag) Переключает флаг
  • contains(flag) Проверяет наличие флага
  • getValue() Возвращает текущее значение

Статические методы:

BitField.all() // Все флаги установлены
BitField.withFlags(flags) // Создаёт класс с привязанными флагами

Производительность

| Операция | Скорость (оп/сек) | | ------------ | ----------------- | | Установка | ~15 млн | | Проверка | ~20 млн | | Переключение | ~12 млн |

Лицензия

MIT © 2025 FarryDay