Memory storage

A simple memory storage based LRU algthorim.

Install

npm install memory-storage

APIs

LRUCache

Intialize a LRUCache instance.

• size {Number}: cache size, default is 10

Usage

const LRUCache = require('memory-storage');
const cache = new LRUCache();

or

const LRUCache = require('memory-storage');
const cache = new LRUCache(100);

set

Set <k, v> to cache.

• key {String}: key name
• value {Any}: To be cached value

Usage

cache.set('a', 1);  // Set number
cache.set('a', {}); // Set object
cache.set('a', []); // Set array
cache.set('a', 'a'); // Set string

setex

Set <k, v> to cache and add expire time(seconds).

• key {String}: key name
• value {Any}: to be cached value
• expire {Number}: expire seconds

Usage

cache.set('a', 1, 100);

expire

Expire key in seconds

• key {String}: key name
• expire {Number}: expire seconds

Usage

cache.expire('a', 100);

get

Get value by key, return real value or undefined.

• key {String}: key name

Usage

cache.get('foo');

rpush

Push value to named key's array.

• key {String}: key name
• value {Any}: To be cached value

Usage

cache.rpush('a', 'a');

rpop

Pop value from named key's array and return it.

• key {String}: key name

Usage

cache.rpush('a', 1);
console.log(cache.rpop('a'));

Test

jasmine

TODO

• support more apis like redis command.