Source file

• alisa.cache

Creator(s)

• Ali (Fearless Crazy)

Social media accounts

• Ali: Instagram - Discord - Spotify

How to download?

• First we create a node.js file (If you have not downloaded node.js to computer before, you can download node.js by clicking here)

• Then we open the PowerShell terminal by "shift + right click" on the folder of the file you created.

• Then we write npm i alisa.cache and press enter.

• Download the alisa.cache module

• And now we have downloaded the alisa.cache module, congratulations 🎉🎉

What is this module?

• This module is a high-performance and flexible JavaScript caching system designed to be modular and extendable

• Supports TTL, LRU/FIFO/MFU, tagging, namespacing, event emitters, auto pruning, and more

• Easily usable and thoroughly tested with assert-based and Jest-style tests

Features

• ✅ LRU / FIFO / MFU / CUSTOM strategy support
• 🔁 TTL with auto cleanup support
• 🔖 Tag system (getByTag, deleteByTag, etc.)
• 📂 Namespaces for isolated sub-caches
• 🧠 Smart methods: filter, map, groupBy, partition, reduce
• 🔍 Utility methods: rename, search, expire, ttl
• 📦 Full snapshot + restore system
• 📡 on() and emit() support (custom event listeners)
• 🧪 Manual and automated testing support (test.js)

How to use?

1const AlisaCache = require("alisa.cache");
2const cache = new AlisaCache({ limit: 100, ttl: 6000 });
3
4cache.set("user:1", { name: "Alice" }, { ttl: 5000, tags: ["admin"] });
5console.log(cache.get("user:1")); // { name: "Alice" }
6
7cache.set("owner", { name: "Tom", role: "owner" }, { tags: ["owner"] })
8
9cache.protect("owner");
10cache.delete("owner"); // false, owner is still there
11
12await cache.saveToFile("./cache.json");
13await cache.loadFromFile("./cache.json");

Real-world example: Discord bot prefix per guild

1const cache = new AlisaCache({ limit: 500 });
2
3function onMessage(msg) {
4  const guildId = msg.guild?.id;
5  if (!guildId) return;
6
7  const guildCache = cache.namespace(guildId);
8  const prefix = guildCache.get("prefix") || "!";
9
10  if (msg.content.startsWith(prefix)) {
11    const command = msg.content.slice(prefix.length).split(" ")[0];
12    console.log(`Command received: ${command}`);
13  }
14}
15
16// Setup example
17cache.namespace("1234").set("prefix", ".");

How to test?

1node test.js

If all goes well, you'll see:

[✓] All tests passed

API Table

Method	Description
set(key, value, opts)	Add item to cache
get(key)	Retrieve value
has(key)	Check existence
delete(key)	Remove key
ttl(key)	Remaining TTL in ms
expire(key)	Instantly expire a key
rename(old, new)	Rename a key
filter(fn)	Return matching entries
groupBy(fn)	Group entries
partition(fn)	Separate matching & non-matching
search(q, where?)	Find keys/values with RegExp support
namespace(name)	Get isolated cache segment
snapshot()	Export cache state
loadSnapshot(obj)	Restore from snapshot
on(event, cb)	Register listener
protect(key)	Prevent a key from being removed
unprotect(key)	Remove protection from a key
saveToFile(path)	Save cache as JSON file
loadFromFile(path)	Load cache from JSON file

Please do not forget to use it in the latest version for more stable and performance of the module!

And finally

• If you want to support this module, if you request me on github, I will be happy to help you.

• Thank you for reading this far, i love you 💗

• See you in my next modules!