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tiny-lru
Advanced tools
Changelog
Readme
Least Recently Used cache for Client or Server.
import {lru} from "tiny-lru";
const cache = lru(max, ttl = 0, resetTtl = false);
Lodash provides a memoize
function with a cache that can be swapped out as long as it implements the right interface.
See the lodash docs for more on memoize
.
_.memoize.Cache = lru().constructor;
const memoized = _.memoize(myFunc);
memoized.cache.max = 10;
Clears the contents of the cache
return {Object} LRU instance
Example
cache.clear();
Removes item from cache
param {String} key Item key
return {Object} LRU instance
Example
cache.delete("myKey");
Evicts the least recently used item from cache
return {Object} LRU instance
Example
cache.evict();
Gets expiration time for cached item
param {String} key Item key
return {Mixed} Undefined or number (epoch time)
Example
const item = cache.expiresAt("myKey");
Item in "first" or "bottom" position
Example
const cache = lru();
cache.first; // null - it's a new cache!
Gets cached item and moves it to the front
param {String} key Item key
return {Mixed} Undefined or Item value
Example
const item = cache.get("myKey");
Returns an Array
of cache item keys.
return {Array} Array of keys
Example
console.log(cache.keys());
Max items to hold in cache (1000)
Example
const cache = lru(500);
cache.max; // 500
Item in "last" or "top" position
Example
const cache = lru();
cache.last; // null - it's a new cache!
Resets item.expiry
with each set()
if true
(false)
Example
const cache = lru();
cache.resetTtl; // false
Sets item in cache as first
param {String} key Item key
param {Mixed} value Item value
return {Object} LRU instance
Example
cache.set("myKey", {prop: true});
Number of items in cache
Example
const cache = lru();
cache.size; // 0 - it's a new cache!
Milliseconds an item will remain in cache; lazy expiration upon next get()
of an item
Example
const cache = lru();
cache.ttl = 3e4;
Copyright (c) 2023 Jason Mulligan Licensed under the BSD-3 license.
FAQs
Tiny LRU cache for Client or Server
We found that tiny-lru demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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