LRUCache

LRU Cache for node.js/browser.

[![NPM version][npm-image]][npm-url]
[![Build Status][travis-image]][travis-url]
[![Downloads][downloads-image]][downloads-url]

使用链表实现的 LRU 缓存。get、set 和 update 方法会更新 LRU 优先级。

Install

Node.js:

``sh
npm install lrucache
`

bower:

`sh
bower install lrucache
`

Browser:

`html

`

API

`js
const LRUCache = require('lrucache')
`

$3

+ capacity: : Optional, Type: Number, Default: Number.MAX_SAFE_INTEGER.

`js
const cache = LRUCache(100)
`

$3

Return value.

`js
let a = cache.get('a')
`

$3

Return this.

`js
cache.set('a', [1, 2, 3])
`

$3

Return this, It only run when key exists.

`js
cache.update('a', function (a) {
a.push(4)
return a
})
`

$3

Return this.

`js
cache.remove('a')
`

$3

Return this.

`js
cache.removeAll()
`

$3

Return a array of keys.

`js
cache.keys()
`

$3

Return true or false.

`js
cache.has('a')
`

$3

Return the stalest key or null.

`js
let staleKey = cache.staleKey()
`

$3

Return the stalest data or null.

`js
let staleDate = cache.popStale()
`

$3

Return info.

`js
cache.info()
``

[npm-url]: https://npmjs.org/package/lrucache
[npm-image]: http://img.shields.io/npm/v/lrucache.svg

[travis-url]: https://travis-ci.org/zensh/lrucache
[travis-image]: http://img.shields.io/travis/zensh/lrucache.svg

[downloads-url]: https://npmjs.org/package/lrucache
[downloads-image]: http://img.shields.io/npm/dm/lrucache.svg?style=flat-square