t-lru-cahce

T-LRU-CACHE

A LRU Cache module.

Installation:

npm install t-lru-cache --save

Useage

const TLRUCache = require("t-lru-cache");
const cache = new TLRUCache(10 /* capacity */); 

cache.put(1, 2);
cache.put('1', 3);
console.log(cahe.get(1)); // 2;
console.log(cahe.get('1')); // 3;

API

• new TLRUCache(capacity)

  Return an t-lru-cache instance

• put(key, value)

  It will update the "recently used"-ness of the key;

  If the key has in the cache, it will update it's value;

• get(key) => value

  If the key is not found, get() will return -1.

  The key and val can be any value.

• peek(key) => value

  Returns the key value (or undefined if not found) without updating the "recently used"-ness of the key.

• delete(key) => true/false

  Deletes a key out of the cache.

• reset()

  Clear the cache entirely, throwing away all values.

• has(key) => true/false

  Check if a key is in the cache, without updating the recent-ness or deleting it for being stale.

• forEach(function(value[,key]))

  Iterates over all the keys in the cache, in order of recent-ness.

• forEachRight(function(value[,key]))

  Iterates over all the keys in the cache, form right-to-left, in reverse order.

• keys() => []

  Return all the keys in cache.

License

  MIT