react-context | : shipit : Helpful Properties with React Context | Frontend Framework library
kandi X-RAY | react-context Summary
kandi X-RAY | react-context Summary
:shipit: Helpful Properties with React Context
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QUESTION
My team recently have been running into an odd error when trying to npm start
a Create React App we are developing. The error is Bad state: Can't access __parent outside of a module
which is causing the Build to fail. We have used this setup for about a year without having this issue. The node-sass version we are using is "node-sass": "npm:sass@^1.32.5"
It is a dart Sass implementation. We have tried reinstall node modules and clearing npm cache to no avail. Any suggestions would be much appreciated. The full error message is below.
ANSWER
Answered 2021-May-12 at 17:18Ok, so we recently figured out the issue. A stylesheet was referenced in the app from a node module. The node module was updated and the path to the stylesheet did not exist anymore. For some reason the linter only had an issue with it when a production build was being created. The error message was very vague. We use Create React App and its configurations for building a production app.
QUESTION
I am making a simple react application in which I am in the need to display user list in select dropdown.
This user list comes from api.
So I am using Context API in my application and I have made a context and made the api call inside the context.
context.js
...ANSWER
Answered 2021-Apr-23 at 03:41You can store the user list in an array, and have your components call getUsers
on mount. Then just use users
wherever you need
QUESTION
I am making an e-commerce app with react and firebase the component contains two child components
1- (this component will be duplicated as many Items as the user adds to the cart and it has the functionality to let user modify the quantity of the Item )
2- (this component will show the user the the total price of his cart and the shipping fees)
of course all the data of the items and the total will be gotten from the database (I am using firestore) but but the issue is when the user update the quantity of the items from the component the total price from the
did not get updated as well because the database call will be done already and no way to recall the function that gets the data from the database because there is no parent- child relation between the two components and I can't pass
props
between them I have tried to use react-context-api for this but that did not solve the issue because the up to date is on the database and the only way to update the total value is to refresh the page and this is not a good user experience to have.
ANSWER
Answered 2021-Mar-29 at 18:10In any React all, all affected UI components should be updated when you update the cart information in the state (as they should all be observing that).
When using Firestore, you'll use a so-called CQRS pattern, where the updates sent to the database, are a separate stream from the listeners to the database. You'll typically add listeners when you create/mount the components, so that they're always listening while the component is visible to the user.
With that setup in place, the update flow becomes:
- Your code write a new value to the database through the Firebase SDK.
- This gets written to the database on the server at some point.
- The servers sends this information to all other clients, and a confirmation to the client who wrote the value.
- This triggers the listener that you registered before.
- The listener updates the data in the state of the app.
- And that then finally triggers a repaint of the affected components.
This is the general flow, but it applies to all cases I can think of.
QUESTION
Following Kent C Dodds' provider pattern explained in this blog post, I have a context provider component along with a hook to use that context.
The hook guards against the use of it outside of the provider,
...ANSWER
Answered 2021-Feb-23 at 07:21You could do something like this
QUESTION
how to create a protected route with react-router-dom and storing response in local storage, so that when a user tries to open next time they can view their details again. After login, they should redirect to the dashboard page.
All functionality is added in ContextApi. Codesandbox link : Code
I tried but not able to achieve it
Route Page
...ANSWER
Answered 2021-Feb-20 at 07:56QUESTION
I'm trying to dynamically set context in a parent component from a child component using this post as a guide
Here's my App.tsx:
...ANSWER
Answered 2021-Feb-05 at 14:43UsersContext
should be outside the App
component and marked for export.
QUESTION
I'm building a pretty simple restaurant website using React and Next.js. I have a home page and an 'order' page, which renders a menu from a state object ('menuitems'). I want the user to be able to add items to their 'cart', which is another state object. So ultimately I'm transferring data from the static 'menuitems' state to the 'cart.'
What I can't figure out is how I can update the 'cart' state from my 'order' page.
I've set up a context for the app going off of this guide. I've been able to successfully access the menu using a call to the custom hook 'useAppContext()' but I no longer have access to the updater functions provided through useState() or useContext() calls I previously used when I built something similar with everything in a single file (you can see in my code below where I invoke the now-undefined setCartItem() function).
How can I update the 'cartitems' state from inside of my 'order' component?
File where I have my context object:
...ANSWER
Answered 2021-Jan-23 at 17:56Create a state in your provider, then pass setCartItems into your context.
QUESTION
So i am using React Native to develop the app and trying to upload the app to TestFlight via AppStoreConnect. Everytime i upload i get an email from apple:
ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted. Instead, use WKWebView for improved security and reliability
Yes, i've taken a loook at similar posts that are here on Stackoverflow. Here are the things i've tried.
1. I've rangrep -r UIWebView
on both node_modules
and Pods
folders and only matches i get are comment tags.
For node_modules:
...ANSWER
Answered 2021-Jan-11 at 14:27So turns out that one of the Frameworks i added in theFramework, Libraries, and Embedded Content
of XCode was using UIWebView - in this particular case i was the GD Framework. So i just had to download the updated SDK and that solved the problem for me. See Image here
QUESTION
I'm creating an internal NPM package that contains the base layout for all of our ReactJS web applications. In this package, I am using styled-components for formatting the components, and rollup to build the package. Styled components is also used in the target application.
Here are the config files:
packages.json
...ANSWER
Answered 2020-Dec-09 at 00:17So, after two weeks, it turns out that having an image in the theme was what was causing this. Changing the image from an import to a url reference fixed this problem.
QUESTION
EDIT: To comply with Stackoverflow guidelines and makes thing easy for all of us, I have submitted a small reproducible example that reproduces my bug:
https://github.com/shackra/stackoverflow-alias-bug
EDIT 2: if this is of help, I'm using asdf
version v0.8.0-c6145d0
to manage my nodejs
installation:
ANSWER
Answered 2020-Dec-01 at 20:20I see that craco.config.js format needs correction.
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