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useEffect re-renders too many times
I wish did fix the issue. I have this component, that needs to fetch data, set it to state and then pass it to the children. Some of the data also needs to be set in context. My problem is that using useEffect, once called the API, it will re-render
TAG :reactjs
Date : September 18 2020, 09:00 PM , By : Everton Júnior
React constructor(), componentDidmount with props variable
I wish did fix the issue. This is a functional component, correctly formatted is probably a little easier to read:
TAG :reactjs
Date : September 18 2020, 06:00 PM , By : shadylane855
Is it possible to compute type to react component props based on the presence or value of another prop using flow?
I wish this help you The best way to solve this is with a combination of disjoint unions and type spread for the common props:
TAG :reactjs
Date : September 18 2020, 05:00 PM , By : Paolino
Actions must be plain objects. Use custom middleware for async actions Saga thunk I do have so far in my store
may help you . handleGetDistrictsData returns a promise (all async functions return promises). You cannot dispatch a promise in plain redux saga, and redux-saga does not change this. Instead, dispatch a normal action, and have that action run a saga.
TAG :reactjs
Date : September 18 2020, 02:00 PM , By : Rafe
can i use graphql in react without using Apollo?
I wish did fix the issue. Yes. We can use GraphQL with React without using Apollo Client. We can use fetch or axios and can make things work the same.Below example demonstrates the usage of fetch to query a GraphQL endpoint.
TAG :reactjs
Date : September 18 2020, 03:00 AM , By : Rob Davies
Difference between different ways to initiate a react-native project?
may help you . npx is a command which allows you to run commands inside an npm package without having to install it. npx react-native and react-native are the same commands, except that to call react-native you'd have to install it using npm first.
TAG :reactjs
Date : September 17 2020, 07:00 AM , By : S. Chase
How to setState from function parameter in React
Does that help In order to use this in a callback function, as told in the comments you have to bind it in the constructor or use an arrow function.Also, since your name is a variable, you can't update your state like:
TAG :reactjs
Date : September 16 2020, 06:00 AM , By : Dani Lozano
Static value as hook input
help you fix your problem useEffect listen to state update. SomeService.data is a static variable. You should implement something like that using Hooks.
TAG :reactjs
Date : September 15 2020, 03:00 PM , By : Parm Jeet
How to render different Image source through locating the file REACT
like below fixes the issue Local image dynamic source will not work in react native directly. You have to create array of local image source and then you can use that array to display image.For example create image array :
TAG :reactjs
Date : September 15 2020, 02:00 PM , By : Hugo
Comparison Assignments in React Practical Tutorial
With these it helps In react practical tutorial in section "Declaring a Winner", this code has been shown: , Lets break if condition and analyse it
TAG :reactjs
Date : September 15 2020, 04:00 AM , By : Mr.Jin
Why do I need to set a value of a component when assigning a state from event handler?
Any of those help React has taken control of rendering DOM elements, every html element will be binded with a value in component's state. when there is a change in value react re-renders the component. Which means a setState will trigger rendering th
TAG :reactjs
Date : September 14 2020, 08:00 AM , By : Murali Krishna Kotch
previous state persisting even after calling setState() with new data
around this issue You need to check if event .onSnapshot(snapshot => {}) is triggered with only the newer elements or it gets triggered with all the elements. From your code it is clear that you are updating state.tasks with tempTasks so it is very m
TAG :reactjs
Date : September 13 2020, 05:00 AM , By : Marcel de Jong
Download files from an API by a React Native app using EXPO, and get the link of each file
To fix this issue MY EXP ON THIS I was working on a file sharing app, and also needed to download and upload files to server.
TAG :reactjs
Date : September 13 2020, 04:00 AM , By : user6097067
How to call a function onClick which is defined in React Hooks useEffect()?
this will help Because you can't. That's not how it works. useEffect — without a second param— works like componentDidMount lifecycle. The function you're calling has already been called when the component is mounted. I don't know for what reason you
TAG :reactjs
Date : September 12 2020, 05:00 PM , By : Ying
AWS amplify deploy failure due to aws-exports
seems to work fine I have experienced the same problem in my first builds. Since aws-exports it's a file with sensitive information you're doing right by adding it to your .gitignore file.The Amplify documentation is not specific about how you should
TAG :reactjs
Date : September 12 2020, 12:00 PM , By : Jan
set the state through a function in reactjs
hope this fix your issue this.setState() is an asynchronous call. Therefore, You should not check this.state.popUpStat value right after calling this.setState().The correct way to do so is passing a callback function as a second parameter in this.set
TAG :reactjs
Date : September 11 2020, 06:00 PM , By : Gayumie Kottage
ReactJS: How to avoid the re-rendeing the whole page if only one part is changed?
this one helps. So, since your state is on the component level, every time you have a state change, the entire component will be re-rendered.I think a good approach to solve that would be to separate this renderPart function in a new component with i
TAG :reactjs
Date : September 10 2020, 06:00 PM , By : Teo Lungu
NextJS + Contentful => getEntries request within getInitialProps breaks production build
this will help Stack: NextJS, Contentful + Now , looks like your ENVs could be lacking:
TAG :reactjs
Date : September 10 2020, 08:00 AM , By : user6097700
Gatsby conditional rendering of a component
To fix this issue I have a template like this: , You can define like this
TAG :reactjs
Date : September 10 2020, 01:00 AM , By : 검소한 개발자
onChange not updating React
will help you Define your onChange={onChangeHeadline} on Select tag not on option tag
TAG :reactjs
Date : September 10 2020, 12:00 AM , By : Dick_JerkoffSki
react-hook-form with react-redux-firebase not working
seems to work fine You should probably look into the docs of react-hook-form again. Looks like you'll be destructuring an object {}, not array [].Try changing this line:
TAG :reactjs
Date : September 09 2020, 09:00 AM , By : Veselin Marchev
Access external API from Firebase Hosted React App Created Using CRA
should help you out The proper CORS header is Access-Control-Allow-Origin, not Access-Control-Origin. Also, depending on the nature of the request you may need a preflight request and may not be able to use * as the origin.There is nothing you can do
TAG :reactjs
Date : September 08 2020, 06:00 PM , By : Edmond Chan
Removing subtasks in React, with hooks
fixed the issue. Will look into that further There are various problems: handleRemoveSubtasks tries to access el.tasks even if it doesnt exist, so it throws an error. handleRemoveSubtasks filter is returned as the own el element, instead of the el.ta
TAG :reactjs
Date : September 08 2020, 11:00 AM , By : Joe Cole
How to update state of an object in state with another object in state
I wish did fix the issue. As for what you are trying to do, I think a better way would be that you pass id to onChange callback and set state value of modal form on that onChange callback function.e.g :
TAG :reactjs
Date : September 07 2020, 04:00 PM , By : Fareeda Topunglu
How to render HTML and Code stored in database using Reactjs component - getting rendered unformatted
may help you . I have stored some html and code in db under column name question and accessing it using nodejs api. http://localhost:3001/api/ts returns the following - , to render html in react dangerouslySetInnerHTML prop like this:
TAG :reactjs
Date : September 07 2020, 06:00 AM , By : hanbaishuo
Call Socket IO instance from a component or API route on NextJS
seems to work fine You do not need to export the instance just create a function to perform the task in socket file and export the function and use it wherever you want.
TAG :reactjs
Date : September 07 2020, 06:00 AM , By : Web_Sufferrer
How to use axios to get api items in redux?
I wish this help you You are close to where you need to be, the missing piece is that redux is synchronous, so you need to use something like redux-thunk or redux-saga to handle async actions such as network requests.Once you have setup whatever libr
TAG :reactjs
Date : September 06 2020, 02:00 PM , By : Naveen alexis
State Management in Ember application
may help you . There are several ways Ember apps typically manage state depending on the context.1) The URL: All state in an Ember app starts with the URL which can include query parameters as well. The URL is usually accessed via a Route and this da
TAG :reactjs
Date : September 06 2020, 10:00 AM , By : user6098347
How do I trigger a forced update with react-i18next?
like below fixes the issue You can call i18n.changeLanguage(lang); it will trigger re-render of the app.
TAG :reactjs
Date : September 06 2020, 05:00 AM , By : евгений
React-table[v7] rendering with Storybook
should help you out Ok after some time, I have figured it out. It was mainly a problem with data and variable scoping. Initially, I was doing this
TAG :reactjs
Date : September 06 2020, 12:00 AM , By : Jaden Carrington
Syntax error: Identifier 'App' has already been declared (11:7) Not posted anywhere else in the file
hope this fix your issue The identifier App has already been declared on this line: import App from './App'; I suggest changing the name of the function, something like:
TAG :reactjs
Date : September 05 2020, 08:00 PM , By : Christof
React Js with Visual studio 2017 with Typescript
help you fix your problem I would personally recommend learning and using Webpack and NPM to manage all frontend stuff and not mess with templates or Nuget packages. These are technologies worth knowing anyways. I know it's very confusing at first, t
TAG :reactjs
Date : September 05 2020, 02:00 AM , By : morteza
How to use jest.spyOn with functional react component
it helps some times Should you must use spyOn? You can just pass a jest mock fn as the addBookToCart prop
TAG :reactjs
Date : September 03 2020, 01:00 PM , By : Nita Gale
Using one webpack project inside another with react hooks causes an error
like below fixes the issue I see you have taken an approach to have multiple projects under one directory/repository/codebase, which I think it is not the best approach. You should split and have all your projects independently, a library sub-project
TAG :reactjs
Date : September 02 2020, 02:00 PM , By : Michael Spinka
React: Uncaught TypeError: tokenIds.map is not a function
I wish this helpful for you I am using React to generate components from an array held in state via hooks. Initialized array is working without any problems, but it stops working after update of its state: , The problem is here, in the handleTokenIdC
TAG :reactjs
Date : September 02 2020, 11:00 AM , By : Akash Agrawal
Material-ui autocomplete clear value
hope this fix your issue Using hooks on the value prop breaks the functionality of the autocomplete component ( at least for me ). Using class, and setting the local state is the same. Luckily it is a react component, so it have a "key" prop. When th
TAG :reactjs
Date : September 02 2020, 12:00 AM , By : Lee Carter
Too many re-renders. React limits the number of renders to prevent an infinite loop. Updating state of a functional comp
I wish this help you Every time I display the cart items I want to update the total price and count of the items using the useState function inside the render method. But, immediately after the UI is rendered I get a react error mentioned above. , us
TAG :reactjs
Date : August 31 2020, 09:00 PM , By : George Rendel
how to change an item in an array using the useState hook in react?
To fix this issue let's say I have an array of 1 and I want to change index 2, how do I change that state? , The second item of useState()'s array has a callback function.
TAG :reactjs
Date : August 31 2020, 02:00 AM , By : codex
Dockerize react application index.html missing
I wish this helpful for you You have to write in the Dockerfile COPY . .You have to copy your project sources inside the container. This is why it is complaining that it can’t find the index.html file because there is no command that copies the sourc
TAG :reactjs
Date : August 29 2020, 11:00 AM , By : Aaron Pfalzgraf
React Redux clean way to update nested objects?
I hope this helps . Yes, your sample code is mutating the existing state. As that docs page shows, you need to make a copy of every level of nested data in order to create a correct immutable update.That's one of the reasons why we strongly recommend
TAG :reactjs
Date : August 20 2020, 12:56 PM , By : connor glynn
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