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React hook to subscribe and dispatch events across React components
import { dispatch } from 'use-bus'
:
dispatch('string')
: will dispatch the action { type: 'string' }
without payloaddispatch({ type: 'string', payload: 3 })
: will dispatch the given actionimport useBus from 'use-bus'
:
useBus(filter, callback, deps)
: register the given callback
to the given filter
filter
: it can be a string, array of strings, RegExp or a function
string
: if filter is a string, then the action type is test over this given string, if the filter match the type, the callback is calledstring[]
: if the filter array includes the type, the callback is calledRegExp
: if the filter expression matches the type, the callback is calledfunction
: the callback is called if the function returns a truthy valuecallback
: take the action as the first argument so you can retrieve its type and its payload for exampledeps
: is an array where you declare variables you use in callback
, like you are doing for a useEffect from Reactimport React, { useState } from 'react'
import useBus from 'use-bus'
const PrintIterations = () => {
const [iterations, setIterations] = useState(0)
useBus(
'@@ui/ADD_ITERATION',
() => setIterations(iterations + 1),
[iterations],
)
return (
<div>
{'There is '}
{iterations}
{' iterations'}
</div>
)
}
export default PrintIterations
useBus
@@ui/ADD_ITERATION
import React from 'react'
import { dispatch } from 'use-bus'
const IterateBtn = () => {
return (
<button onClick={() => dispatch('@@ui/ADD_ITERATION')}>
Iterate
</button>
)
}
export default IterateBtn
dispatch
and call it with the event you want to sendimport React from 'react'
import PrintIterations from './printIterations'
import IterateBtn from './iterateBtn'
const App = () => {
return (
<div>
<PrintIterations />
<IterateBtn />
</div>
)
}
export default App
There is no connection to do, this is already done by use-bus
.
This example just demonstrate that siblings can interact, but you can imagine a dispatcher wherever you want in the React tree and something that react to the dispatch wherever you want to.
FAQs
> React hook to subscribe and dispatch events across React components
We found that use-bus 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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