Trying to use React Hooks in ReactDOM.render. Is it right?





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}







1















So i get dispatcher.useEffect is not a function



react.development.js:1463 Uncaught TypeError: dispatcher.useEffect is not a function

at useEffect (react.development.js:1463)

at Preload (VM75697 Preload.js:40)

at ProxyFacade (react-hot-loader.development.js:677)

at mountIndeterminateComponent (react-dom.development.js:14563)

at beginWork (react-dom.development.js:15063)

at performUnitOfWork (react-dom.development.js:17820)

at workLoop (react-dom.development.js:17860)

at HTMLUnknownElement.callCallback (react-dom.development.js:149)

at Object.invokeGuardedCallbackDev (react-dom.development.js:199)

at invokeGuardedCallback (react-dom.development.js:256)


I'm trying to use functions inside render method:



render(

  <Root store={store} history={history} />,

  document.getElementById('app'),

)


My Root.js file looks like: 



import React from 'react'

import { hot } from 'react-hot-loader'

import { Provider } from 'react-redux'

import { ConnectedRouter } from 'connected-react-router'

import Preload from '../Preload'

import Routes from './Routes'    



const Root = ({ store, history }) => (

  <Provider store={store}>

    <Preload>

      <ConnectedRouter history={history}>

        <Routes />

      </ConnectedRouter>

    </Preload>

  </Provider>

)



export default hot(module)(Root)


And finally i use useEffect in Preload.js



import { useEffect } from 'react'

import { connect } from 'react-redux'

import { init } from '../actions'



const Preload = ({

  children,

  token,

  onInit,

}) => {

  useEffect(() => {

    if (token) {

      onInit()

    }

  })



  return children

}



export default connect(

  state => ({

    token: state.security.token,

  }),

  dispatch => ({

    onInit: () => dispatch(init()),

  }),

)(Preload)


Most answers to that error was, that people forget to use function inside useEffect, but not in my case.






reactjs react-hooks







share|improve this question































    1















    So i get dispatcher.useEffect is not a function



    react.development.js:1463 Uncaught TypeError: dispatcher.useEffect is not a function
    
at useEffect (react.development.js:1463)
    
at Preload (VM75697 Preload.js:40)
    
at ProxyFacade (react-hot-loader.development.js:677)
    
at mountIndeterminateComponent (react-dom.development.js:14563)
    
at beginWork (react-dom.development.js:15063)
    
at performUnitOfWork (react-dom.development.js:17820)
    
at workLoop (react-dom.development.js:17860)
    
at HTMLUnknownElement.callCallback (react-dom.development.js:149)
    
at Object.invokeGuardedCallbackDev (react-dom.development.js:199)
    
at invokeGuardedCallback (react-dom.development.js:256)


    I'm trying to use functions inside render method:



    render(
    
  <Root store={store} history={history} />,
    
  document.getElementById('app'),
    
)


    My Root.js file looks like: 



    import React from 'react'
    
import { hot } from 'react-hot-loader'
    
import { Provider } from 'react-redux'
    
import { ConnectedRouter } from 'connected-react-router'
    
import Preload from '../Preload'
    
import Routes from './Routes'    
    

    
const Root = ({ store, history }) => (
    
  <Provider store={store}>
    
    <Preload>
    
      <ConnectedRouter history={history}>
    
        <Routes />
    
      </ConnectedRouter>
    
    </Preload>
    
  </Provider>
    
)
    

    
export default hot(module)(Root)


    And finally i use useEffect in Preload.js



    import { useEffect } from 'react'
    
import { connect } from 'react-redux'
    
import { init } from '../actions'
    

    
const Preload = ({
    
  children,
    
  token,
    
  onInit,
    
}) => {
    
  useEffect(() => {
    
    if (token) {
    
      onInit()
    
    }
    
  })
    

    
  return children
    
}
    

    
export default connect(
    
  state => ({
    
    token: state.security.token,
    
  }),
    
  dispatch => ({
    
    onInit: () => dispatch(init()),
    
  }),
    
)(Preload)


    Most answers to that error was, that people forget to use function inside useEffect, but not in my case.






    reactjs react-hooks







    share|improve this question



























      1












      1








      1


      0






      So i get dispatcher.useEffect is not a function



      react.development.js:1463 Uncaught TypeError: dispatcher.useEffect is not a function
      
at useEffect (react.development.js:1463)
      
at Preload (VM75697 Preload.js:40)
      
at ProxyFacade (react-hot-loader.development.js:677)
      
at mountIndeterminateComponent (react-dom.development.js:14563)
      
at beginWork (react-dom.development.js:15063)
      
at performUnitOfWork (react-dom.development.js:17820)
      
at workLoop (react-dom.development.js:17860)
      
at HTMLUnknownElement.callCallback (react-dom.development.js:149)
      
at Object.invokeGuardedCallbackDev (react-dom.development.js:199)
      
at invokeGuardedCallback (react-dom.development.js:256)


      I'm trying to use functions inside render method:



      render(
      
  <Root store={store} history={history} />,
      
  document.getElementById('app'),
      
)


      My Root.js file looks like: 



      import React from 'react'
      
import { hot } from 'react-hot-loader'
      
import { Provider } from 'react-redux'
      
import { ConnectedRouter } from 'connected-react-router'
      
import Preload from '../Preload'
      
import Routes from './Routes'    
      

      
const Root = ({ store, history }) => (
      
  <Provider store={store}>
      
    <Preload>
      
      <ConnectedRouter history={history}>
      
        <Routes />
      
      </ConnectedRouter>
      
    </Preload>
      
  </Provider>
      
)
      

      
export default hot(module)(Root)


      And finally i use useEffect in Preload.js



      import { useEffect } from 'react'
      
import { connect } from 'react-redux'
      
import { init } from '../actions'
      

      
const Preload = ({
      
  children,
      
  token,
      
  onInit,
      
}) => {
      
  useEffect(() => {
      
    if (token) {
      
      onInit()
      
    }
      
  })
      

      
  return children
      
}
      

      
export default connect(
      
  state => ({
      
    token: state.security.token,
      
  }),
      
  dispatch => ({
      
    onInit: () => dispatch(init()),
      
  }),
      
)(Preload)


      Most answers to that error was, that people forget to use function inside useEffect, but not in my case.






      reactjs react-hooks







      share|improve this question
















      So i get dispatcher.useEffect is not a function



      react.development.js:1463 Uncaught TypeError: dispatcher.useEffect is not a function
      
at useEffect (react.development.js:1463)
      
at Preload (VM75697 Preload.js:40)
      
at ProxyFacade (react-hot-loader.development.js:677)
      
at mountIndeterminateComponent (react-dom.development.js:14563)
      
at beginWork (react-dom.development.js:15063)
      
at performUnitOfWork (react-dom.development.js:17820)
      
at workLoop (react-dom.development.js:17860)
      
at HTMLUnknownElement.callCallback (react-dom.development.js:149)
      
at Object.invokeGuardedCallbackDev (react-dom.development.js:199)
      
at invokeGuardedCallback (react-dom.development.js:256)


      I'm trying to use functions inside render method:



      render(
      
  <Root store={store} history={history} />,
      
  document.getElementById('app'),
      
)


      My Root.js file looks like: 



      import React from 'react'
      
import { hot } from 'react-hot-loader'
      
import { Provider } from 'react-redux'
      
import { ConnectedRouter } from 'connected-react-router'
      
import Preload from '../Preload'
      
import Routes from './Routes'    
      

      
const Root = ({ store, history }) => (
      
  <Provider store={store}>
      
    <Preload>
      
      <ConnectedRouter history={history}>
      
        <Routes />
      
      </ConnectedRouter>
      
    </Preload>
      
  </Provider>
      
)
      

      
export default hot(module)(Root)


      And finally i use useEffect in Preload.js



      import { useEffect } from 'react'
      
import { connect } from 'react-redux'
      
import { init } from '../actions'
      

      
const Preload = ({
      
  children,
      
  token,
      
  onInit,
      
}) => {
      
  useEffect(() => {
      
    if (token) {
      
      onInit()
      
    }
      
  })
      

      
  return children
      
}
      

      
export default connect(
      
  state => ({
      
    token: state.security.token,
      
  }),
      
  dispatch => ({
      
    onInit: () => dispatch(init()),
      
  }),
      
)(Preload)


      Most answers to that error was, that people forget to use function inside useEffect, but not in my case.






      reactjs react-hooks




      reactjs react-hooks






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 '18 at 15:16







      chrisands

















      asked Nov 23 '18 at 15:07









      chrisandschrisands

      4528




      4528
























          1 Answer
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          0














          Well, answer is very simple.
          Update to beta not only react, but react-dom too.



          And it seems react-redux's connect get me 



          Uncaught Error: Hooks can only be called inside the body of a function component.


          because react-redux starts support hooks only in 6 version (in beta right now).






          share|improve this answer
























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            active

            oldest

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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            Well, answer is very simple.
            Update to beta not only react, but react-dom too.



            And it seems react-redux's connect get me 



            Uncaught Error: Hooks can only be called inside the body of a function component.


            because react-redux starts support hooks only in 6 version (in beta right now).






            share|improve this answer




























              0














              Well, answer is very simple.
              Update to beta not only react, but react-dom too.



              And it seems react-redux's connect get me 



              Uncaught Error: Hooks can only be called inside the body of a function component.


              because react-redux starts support hooks only in 6 version (in beta right now).






              share|improve this answer


























                0












                0








                0







                Well, answer is very simple.
                Update to beta not only react, but react-dom too.



                And it seems react-redux's connect get me 



                Uncaught Error: Hooks can only be called inside the body of a function component.


                because react-redux starts support hooks only in 6 version (in beta right now).






                share|improve this answer













                Well, answer is very simple.
                Update to beta not only react, but react-dom too.



                And it seems react-redux's connect get me 



                Uncaught Error: Hooks can only be called inside the body of a function component.


                because react-redux starts support hooks only in 6 version (in beta right now).







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 24 '18 at 14:50









                chrisandschrisands

                4528




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