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context-storage
Advanced tools
Readme
React hook for sharing localStorage via context.
values are automatically converted to and from JSON.
$ npm install --save context-storage
or
$ yarn add context-storage
requires: any version of react with hooks. (react >= 16.8.0
)
import React from 'react'
import createStorage from 'context-storage'
const [Provider, useStorage] = createStorage('local-storage-key')
const Title = () => <h1>Hello {useStorage()[0]}!</h1>
const UserNameInput = () => {
const [name, setName] = useStorage()
const handleChange = ({ target }) => setName(target.value)
return <input value={name || ''} onChange={handleChange} />
}
export const App = () => (
<Provider>
<Title />
<UserNameInput />
</Provider>
)
key is the only required argument.
name | type | description |
---|---|---|
key | string | which key in localStorage to use |
fallback | any | fallback when localStorage is empty |
replacer | function︱array | passed to JSON.stringify |
reviver | function | passed to JSON.parse |
storage | object | with getItem and setItem methods |
the value will always be encoded as JSON when saving to localStorage
.
and decoded when read back.
it's safe to use objects and arrays, as long as they are non-circular.
following JSON standards, it's to be expected that, without custom replacer/reviver:
Functions
will get discarded;Dates
will be cast into ISO 8601
strings.
Map
andSet
can be used with customreplacer
andreviver
arguments.
FAQs
react hook for localstorage
The npm package context-storage receives a total of 8 weekly downloads. As such, context-storage popularity was classified as not popular.
We found that context-storage demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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