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Questions tagged [mapdispatchtoprops]

13 questions
425
votes
6 answers

What is mapDispatchToProps?

I was reading the documentation for the Redux library and it has this example: In addition to reading the state, container components can dispatch actions. In a similar fashion, you can define a function called mapDispatchToProps() that receives…
Code Whisperer
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mapStateToProps vs mapDispatchToProps

What's the difference between mapStateToProps and mapDispatchToProps arguments to the connect function in react-redux?
Lex V
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mapDispatchToProps type challenge (typescript react-redux)

I am not able to figure out the type of my mapDispatchToProps. Check below in the SignInComponent const mapDispatchToProps. Seems simple as the functions takes signIn() as a parameter, from whom type I have availble. However I was not able to figure…
rustyBucketBay
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React + Redux binding child component methods to parent or keep them on their own

We have an react redux appl. We have a parent class bound to redux It is our parent class: render() { return (
.. const mapStateToProps = (state, ownProps) => ({ parentRelatedFooVar: state.parentRelatedFooVar }) const…
benchpresser
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How to replace - mapDispatchToProps to useDispatch - REACT REDUX

I am a beginner in Redux - I need to replace mapStateToProps and mapDispatchToProps to hooks. I've replaced mapStateToProps to useSelector, but I'm having trouble replacing mapDispatchToProps to hook useDispatch. The code I attach below shows what I…
Yerba Mate
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React Redux - mapDispatchToProps called for every event in a map function

Within my component I have a 'OnClick' handler that is supposed to fire a function called 'onSelectProject' within mapDispatchToProps that dispatches actions to the store. In this case it passes the id of the project passed from the click event The…
Jebathon
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React native app performance on connect(mapStateToProps, mapDispatchToProps)

I'm creating react native app with redux state management. I want to know what is the best practice of having connect(mapStateToProps, mapDispatchToProps). I have several component classes i.e. ParentA, ChildA, ChildB. Currently I'm getting state…
John Stuart
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Why is the Redux store state variable a function also or did I miss something here

I am learning React and JavaScript. I have this Redux Store that looks like this very simple: const initialState = { booksList: [], progress: false, faild: "", log: "" }; When I do mapStateToProps to my Component then I don't get a log=''…
Kid
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Question about mapDispatchToProps and bindActionCreators when multipla actions

I learn React Redux and reading here about using mapDispatchToProps and bindActionCreators It works fine the bindActionCreators when using it alone like so: export default connect(null, (dispatch) => bindActionCreators(actionCreators,…
Kid
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1 answer

react-redux current props value

I've three buttons on the page, and when clicking on any button i want to get that selected value from the store filtered by id(done in reducer). I'm trying to use redux with mapStateToProps and mapDispatchToProps pattern, but looks like when i try…
user212223
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I cant get Redux action to work there is some error I cant spot please advice

I cant find what I do wrong but the action saveUser is imported and the mapDispatchToProps looks like it linking the actioncorrect but still I get this error (Below after this code there is the action code) The mapDispatchToProps is linking the…
Kid
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11 answers

React & Redux: State of component is not updating even with mapStateToProps

I posted an answer below, but if someone can explain why this is necessary you'll get the bounty, I went through a redux tutorial and feel like I didn't learn about mapDispatchToProps, only mapStateToProps. If you can explain at a deeper level what…
Sam
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OnClick event in React not working in child component

I read "Learning React" (Alex Banks and Eve Porcello) and try to write a simple Color Organizer App not like in a book. Presently I have such a code structure in StarRating component. import React from "react"; import Star from…
dukalis945
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