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iweb-cache

v0.0.9

Published

轻量且强悍的 Cache库, 为您暴露丰富而统一的 API, 使得业务调用更加简便.

Downloads

8

Readme

说明

轻量且强悍的 Cache库, 为您暴露丰富而统一的 API, 使得业务调用更加简便.

  1. 速度更快: 优先操作读取内存中的变量.
  2. 更方便: 可以直接存储JSON格式数据, 无需手动转换成字符串.
  3. 支持设置存储的失效时间.
  4. 自动识别存储数据类型, 获取时候能准确返回存储数据的类型.

存储数据类型

支持:

  1. Number
  2. String
  3. Null
  4. Undefined
  5. Object
  6. Array
  7. RegExp
  8. Boolean

不支持:

Symbol, BigInt, Function 这三个类型的数据不能进行存储!

安装和使用

NPM方式:

npm install iweb-cache -S
import iwebCache from 'iweb-cache'
// or
const iwebCache = require('iweb-cache')

const $cache = iwebCache();

CDN方式:

<script src="https://cdn.jsdelivr.net/npm/iweb-cache/dist/index.umd.js"></script>
<script>
    const $cache = window.iwebCache();
</script>

初始化配置参数

// 1.无其他配置
const $cache = iwebCache();

// 2.配置选项
const $cache = iwebCache({
    // 缓存驱动类型,默认为 localStorage
    storageType: 'localStorage',
    // 主要避免通一个域下有两个前端项目,如果不设置前缀可能会冲突
    prefix: 'abc',
    // 所有存储的数据默认过期时间, 单位毫秒
    // 如果是sessionStorage, 那么是会话期间有效, 只有 type 为 localStorage才可能是永久不会过期
    expires: 1000 * 5
});

设置缓存

$cache.save('userInfo', {
    name: '张三'
})

// 储存数据在5秒钟失效
$cache.save('token', '123456', 1000 * 5)

setTimeout(() => {
    const token = $cache.get('token') // -> false
}, 5010);

读取缓存数据

const token = $cache.get('token')

// 读取没有的缓存数据
const token1 = $cache.get('token1') // -> false

// 读取多个缓存数据
const [token2, userInfo] = $cache.getAll('token', 'userInfo');

覆盖 value 的值, 但是不更新过期时间

$cache.cover('token', '123123');

iwebCache options

属性|说明|类型|默认值 -----|-----|-----|----- storageType|数据存数的驱动|string|localStorage prefix|存放在浏览的缓存前缀|string|- expires|全局设置-存储数据的默认过期时间|number(单位毫秒)|-

cache api

方法名|说明|参数 -----|-----|----- save|设置缓存|(key: string, value: any, [expires:number]):boolean cover|覆盖 value , 但不更新过期时间|(key: string, value: any):boolean get|获取缓存数据|(key: string):cacheData|boolean getAll|获取多条缓存数据|(...[string]): [value|boolean, ...] del|删除指定key的缓存数据|(key: string):boolean clear|删除全部缓存数据|-

联系我

[email protected]