npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

node-cache-engine

v2.0.3

Published

High performing cache library (with cache replacement) for browser and node

Downloads

1,333

Readme

node-cache-engine (supports browser and node)

Simple and High performing cache engine package for node/javascript. It using default cache replacement is LRU (Least Recently Used) cache engine and hash table as javascript Map Object.

Installation

npm install --save node-cache-engine
import { createCache } from 'node-cache-engine';

const cache = createCache(); // creating instance of cache with default configuration

cache.add('key', 'value'); // add into cache
cache.get('key'); // get from cache
cache.has('key'); // checking from key is existing in cache
cache.remove('key'); // removing from cache
cache.size(); // get the size of cache

Option for creating cache instance

import { createCache } from 'node-cache-engine';

const cache = createCache({
  size: 100, // Maximum size for the cache. default value is Number.MAX_SAFE_INTEGER
  engine: 'LRU', // cache replacement engine default is LRU (Least Recently Used)
  HashTable: YourCustomHashTable, // for custom hash Table. default hashTable is 'src/dataStructure/HashTable.js'
});

Supported cache replacement engines and options

| Engines Name | key | supported options | | --------------------- | --- | ----------------- | | Least Recently Used | LRU | HashTable, size | | Least Frequently Used | LFU | HashTable, size |

Time complexity of engine methods

Methods available on cache engines

Creating Custom HashTable

When and Why you should create custom hash table?
The default hash table implemented with Map. If you want much more performance than default you can implement your own (like node wrapped c++ hash table). I think 1 to 5 million cache entry default hash table is fine if your use case is more than this go for custom hash table.

To implement custom hashTable you have to use methods with symbols name provided from the package. example

Next?

  • TTL engine
  • TTL combining with LRU engine

Contribute

Contributions to this project are always welcome.
Please read CONTRIBUTING.md for a How-to.