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url-storage

v0.2.3

Published

Store data in `window.location`.

Downloads

1

Readme

url-storage

使用 URL 参数来存取数据,用来解决分享 URL 的需求。

NPM

完全采用 TypeScript 开发,并且有 100% 的测试覆盖率。

urlStorage 实现了 Storage 接口,意味着它的 API 和 localStorage 以及 sessionStorage 是一致的。

安装与引入

使用 npm:

npm install url-storage

使用 yarn:

yarn add url-storage

引入:

import urlStorage from 'url-storage'

获取参数

假设当前 URL 为 http://example.com/?id=1&arr[0]=apple&arr[1]=banana

urlStorage.getItem('id') // "1"
urlStorage.getItem('fruits') // ["apple", "banana"]
// 或者直接这么写:
urlStorage.id // "1"
urlStorage.arr // ["apple", "banana"]

设置参数

urlStorage.setItem('id', '2')
urlStorage.setItem('arr', ['cherry', 'durian'])
// 或者直接这么写:
urlStorage.id = '2'
urlStorage.arr = ['cherry', 'durian']
// URL 现在为 `http://example.com/?id=2&arr[0]=cherry&arr[1]=durian`

删除参数

urlStorage.removeItem('arr')
// 或者直接这么写:
delete urlStorage.arr
// URL 现在为 `http://example.com/?id=2

清空参数

urlStorage.clear()
// URL 现在为 `http://example.com/

遍历参数

// 假设 URL 仍然为 `http://example.com/?id=1&arr[0]=apple&arr[1]=banana`。
for (let i = 0, n = urlStorage.length; i < n; i++) {
  console.log(urlStorage.key(i))
}
// "id"
// "arr"

以上便是所有的 API。

注意事项

值得注意的是,当使用简便语法来设置或者删除参数时,参数名不可为 urlStorage 上已存在的属性,请使用 setItemremoveItem 代替。

这种用法会抛出运行时错误。如果使用 TypeScript 的话,会在编译时给出提示。

urlStorage.key = 'zxcvbn'
//         ^^^
//         [ts] 无法分配到“key”,因为它是常数或只读属性。
//
// Error: Can't set `key` directly, use `urlStorage.setItem('key', <value>)` instead

delete urlStorage.length
//     ^^^^^^^^^^^^^^^^^
//     [ts] 删除运算符的操作数不能是只读属性。
//
// Error: Can't delete `length` directly, use `urlStorage.removeItem('length')` instead

自定义序列化方法

本项目默认采用 qs 包来实现参数序列化和反序列化功能,你也可以使用自定义方法来覆盖。默认的实现为:

import qs from 'qs'
import { Core } from 'url-storage'

Core.parse = search => {
  return qs.parse(search, { ignoreQueryPrefix: true })
}

Core.stringify = parsed => {
  const search = qs.stringify(parsed)
  return search ? `?${search}` : ''
}