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REACTJS QUESTIONS

How to properly handle unauthenticated users and requests in AWS Amplify/AppSync React apps?
How to properly handle unauthenticated users and requests in AWS Amplify/AppSync React apps?
Hope that helps We're working on automating this easily in a newer version of the Amplify CLI.In the meantime, use the following steps:
TAG : reactjs
Date : November 25 2020, 04:01 AM , By : user2186898
React how to delete properties from state
React how to delete properties from state
fixed the issue. Will look into that further You can't remove properties from the state, because it internally uses a merge
TAG : reactjs
Date : November 25 2020, 04:01 AM , By : user2186611
Set initial state from props in constructor doesn't work
Set initial state from props in constructor doesn't work
this will help I think your problem could be that when the constructor of the OrganizationsSearch runs there is no data in this.props.organizations. You can easily check this with a console.log.You could fix it that you only diplay the OrganizationsS
TAG : reactjs
Date : November 25 2020, 04:01 AM , By : Gazanfarali G.A.Khan
ReactJS: Component not loaded even after URL changes
ReactJS: Component not loaded even after URL changes
This might help you This was not working because of wrong dependency included.Changes in index.js,
TAG : reactjs
Date : November 24 2020, 04:01 AM , By : Thorzdad
disable dates before current date and after 1 month of current date in antd date picker
disable dates before current date and after 1 month of current date in antd date picker
I think the issue was by ths following , For the dates to be disabled, you need it to run through both these conditions. When the condition is:
TAG : reactjs
Date : November 24 2020, 04:01 AM , By : user2186388
Installing Pre-render Token in htaccess file
Installing Pre-render Token in htaccess file
will help you The .htaccess file was correct! The problem is for configuration in host! These configuration must be enable on every type of host :
TAG : reactjs
Date : November 24 2020, 04:01 AM , By : user2186305
Conversion React-Redux from v1.x to v2.x
Conversion React-Redux from v1.x to v2.x
fixed the issue. Will look into that further I solved my problem. I had to move the createStore line outside the class
TAG : reactjs
Date : November 23 2020, 04:01 AM , By : user2185864
How not to open a new tab on clicking middle mouse button?
How not to open a new tab on clicking middle mouse button?
wish help you to fix your issue You can add a mouseDown event and then detect the middle button click like
TAG : reactjs
Date : November 22 2020, 04:01 AM , By : zoomtronic
Is making use of JSX.Element a good practice?
Is making use of JSX.Element a good practice?
wish help you to fix your issue I think it is all the same. If you get a cleaner program with better readability and maintainability than it is better.Think about that way that you can substitute every JSX expression with a createElement() function c
TAG : reactjs
Date : November 22 2020, 04:01 AM , By : user2185493
Gutenberg Plugin Creation Structure and Files
Gutenberg Plugin Creation Structure and Files
This might help you I've recently used that same boilerplate, and FYI, the package.json isn't well structured and has some old dependencies. I had to change some code in that file in order to get it to work. Here is my package.json:
TAG : reactjs
Date : November 21 2020, 04:01 AM , By : user2185230
SpinButton: public property 'value' is undefined and public method 'focus()' is not a function
SpinButton: public property 'value' is undefined and public method 'focus()' is not a function
To fix this issue Inspired on Boy With Silver Wings his answer I have found a workaround. Instead of using a specific type for the RefObject I just declared it as any and then I was able to use the componentRef. So basically I had to override the req
TAG : reactjs
Date : November 20 2020, 04:01 AM , By : user2185113
React native Wix Navigation.push possible unhandled promise rejection: Error : Failed to execute stack command
React native Wix Navigation.push possible unhandled promise rejection: Error : Failed to execute stack command
it should still fix some issue It is working when I gave componentId directly instead of this.props.componentId (this is undefined when I console it). So I directly give componentId,
TAG : reactjs
Date : November 20 2020, 04:01 AM , By : user2184940
How to make a React component look more readable and clean from my example?
How to make a React component look more readable and clean from my example?
With these it helps Creating a component would make it more clean plus using ES6 deconstruction. Also the Fragment is unnecessary around the list as it is being wrapped in a single :
TAG : reactjs
Date : November 20 2020, 04:01 AM , By : Darrell Bedford
Exception handling in Jest/Enzyme
Exception handling in Jest/Enzyme
Does that help You should not handle error in your test cases. Instead you should expect the code to throw errors.You code should look something like this
TAG : reactjs
Date : November 19 2020, 04:01 AM , By : The_Girl
Showing number of entries needed in antd table in react JS
Showing number of entries needed in antd table in react JS
I think the issue was by ths following , You can use antd pagination component and can achieve your need like mentioned below
TAG : reactjs
Date : November 18 2020, 04:01 AM , By : GeorgeX
how to securely use secretAccessKey on react JS
how to securely use secretAccessKey on react JS
This might help you Instead of Hardcoding Access Key and Secret Access Key, You can set Access Key and Secret Access Key in Environment variable and give path of an environment variable. Please have a read about IAM best Security Practices once befor
TAG : reactjs
Date : November 18 2020, 04:01 AM , By : Mun
React: How to sort items according to date?
React: How to sort items according to date?
Hope this helps First, the reverse() will change the original array,so better to copy it and then to reverse it.If the array is sorted with create times ,the reverse will make the earliest created be the last one of the array.
TAG : reactjs
Date : November 18 2020, 04:01 AM , By : Jesusgodoy007
Declaring array in react typescript tsx file gives "error TS1109: Expression expected"
Declaring array in react typescript tsx file gives "error TS1109: Expression expected"
wish help you to fix your issue Your code var nums:number[] = [1,2,3,3] is not an expression. It's a statement. An expression would be [1,2,3,3].
TAG : reactjs
Date : November 18 2020, 04:01 AM , By : user2184278
React v4 and Redux: Update URL after API call to show new route?
React v4 and Redux: Update URL after API call to show new route?
hope this fix your issue You can use the withRouter HoC provided by the react-router package to inject some properties into your components. You're interested in the history object from react-router, not the history object on window.
TAG : reactjs
Date : November 18 2020, 04:01 AM , By : user2184178
React Date picker question: How to display date in proper format in a table?
React Date picker question: How to display date in proper format in a table?
With these it helps If you are dealing with a timestamp string, and you want to format it, one option is to use the MomentJS library, available as the moment npm package. One strategy for fitting this code into your app could be:
TAG : reactjs
Date : November 17 2020, 04:01 AM , By : Lawrence of Burbanki
Load images using React/Webpack
Load images using React/Webpack
I hope this helps . The solution that worked for me was to add the rule to the webpack.config.js:
TAG : reactjs
Date : November 17 2020, 04:01 AM , By : spdc77
PropTypes validation failed when executing the application
PropTypes validation failed when executing the application
should help you out It seems that the problem is caused by a recursive call of on line 46 of modal.jsx file.No props are being passed to this component and this triggers PropType warnings.
TAG : reactjs
Date : November 17 2020, 04:01 AM , By : Zeshan B
How to redirect to new page in React
How to redirect to new page in React
should help you out I'm trying to learn React and I'm struggling to redirect to the page where it shows the details about the clicked item. I have added the react-router-dom but I don't know where to go from here. , Start with below:
TAG : reactjs
Date : November 16 2020, 04:01 AM , By : Angel Romero
DOM order matters for accessibility in web components with RTL/LTR options?
DOM order matters for accessibility in web components with RTL/LTR options?
this will help If your DOM order is correct and the tabbing order and reading order (when using a screen reader) is correct, then when it switches to RTL, you shouldn't have to do anything. The browser should handle tabbing the DOM in RTL order.
TAG : reactjs
Date : November 16 2020, 04:01 AM , By : jwest23
React route url and view changes but component function still active. Why?
React route url and view changes but component function still active. Why?
may help you . Yes, you can call bodyRelative method in componentWillUnmount lifecycle hook to unset the class. Something along those lines:
TAG : reactjs
Date : November 16 2020, 04:01 AM , By : user2183420
SPA site served via react-router does not load unless you've visited the homepage
SPA site served via react-router does not load unless you've visited the homepage
Hope this helps Short answer, assuming your home page is index.html, you should just need an _redirects file with this in it:
TAG : reactjs
Date : November 15 2020, 04:01 AM , By : drgee
Event listener is not removed in useEffect call within function-based component
Event listener is not removed in useEffect call within function-based component
To fix this issue The problem is that handler is new function on each component render. window.removeEventListener("beforeunload", handler) is no-op because this handler function was never registered as beforeunload listener.handler should be moved o
TAG : reactjs
Date : November 15 2020, 04:01 AM , By : Michelle
How to put a spy on clearInterval() in sinon?
How to put a spy on clearInterval() in sinon?
fixed the issue. Will look into that further Global functions can be spied on window or global, depending on the environment, e.g.:
TAG : reactjs
Date : November 14 2020, 04:01 AM , By : Erik H
Setting first char uppercase when setting state in react
Setting first char uppercase when setting state in react
I think the issue was by ths following , I would just set the name to upper case in the first setState call. Not only does this make the code easier to read, but it will also avoid another render.
TAG : reactjs
Date : November 14 2020, 04:01 AM , By : Kelter
How to fix typescript error with next.js?
How to fix typescript error with next.js?
fixed the issue. Will look into that further What version of Typescript are you on? I don't use next.js but this seems to be an issue with the fact that BigInt is still not implemented in many environments. BigInt support in Typescript only recently
TAG : reactjs
Date : November 14 2020, 04:01 AM , By : Eagle Storm
Waiting for request to finish before performing operation ReactJS
Waiting for request to finish before performing operation ReactJS
I think the issue was by ths following , I have an axios call inside my react application , setState can get a call back
TAG : reactjs
Date : November 13 2020, 04:01 AM , By : MrJenShen
check input data if it exist in firebase before adding it
check input data if it exist in firebase before adding it
should help you out Before adding user to firebase, request a query using the mail and check for any results:
TAG : reactjs
Date : November 13 2020, 04:01 AM , By : howdyudodat
react render message before loading new state
react render message before loading new state
I wish did fix the issue. The main thing to remember is that having an isLoading flag allows you to A) Have multiple loading indicators for each section of a page, and B) Allows explicit handling of errors, rendering, etc. It helps avoid all of the "
TAG : reactjs
Date : November 12 2020, 04:01 AM , By : user2182252
Express JS how to redirect all http traffic to https (Heroku)
Express JS how to redirect all http traffic to https (Heroku)
will help you I want a mechanism in my Express JS app to redirect all http traffic to https traffic, similar to Rails's force_ssl config. (In Rails's case, it simply sends back a Redirect response to the client , Typically in your server.js near the
TAG : reactjs
Date : November 12 2020, 04:01 AM , By : Roland
How can I get height of a camera preview?
How can I get height of a camera preview?
Any of those help First you have to choose which ratio do you want to use.4:3, 1:1, 16:9 etc.
TAG : reactjs
Date : November 12 2020, 04:01 AM , By : Naresh Saini
How to detach mock function from the react component's prototype so that will not affect other test?
How to detach mock function from the react component's prototype so that will not affect other test?
will be helpful for those in need In your first it block, you can use a jest spy instead of assigning the mocked function as the new value of handleTxtChange.
TAG : reactjs
Date : November 11 2020, 04:01 AM , By : user2181973
Docker possibly causing my packages to bug out?
Docker possibly causing my packages to bug out?
Hope that helps Look closely at the mounts of your docker-compose.yaml, this part in particular:
TAG : reactjs
Date : November 11 2020, 04:01 AM , By : Magento Expert
Problem setting state via props in componentDidMount
Problem setting state via props in componentDidMount
should help you out My guess is that when you refresh the page your component is getting mounted before your redux state is filling in. Thus, when componentDidMount fires, there's nothing in redux, so the props are nil. When redux finally fills in, i
TAG : reactjs
Date : November 11 2020, 04:01 AM , By : Raju Melveetilpurayi
connected-react-router app updates url but not components
connected-react-router app updates url but not components
will help you The problem is that your InitializingContainer is not receiving the Router props and hence not listening to the route history context changes. Making use of withRouter with connect like
TAG : reactjs
Date : November 11 2020, 04:01 AM , By : user2181763
Splash Screen for iphone in PWA is not working correctly
Splash Screen for iphone in PWA is not working correctly
seems to work fine Just so you know: This issue has been solved in iOS 12.1.4! (Splash code is working in my PWA now)The release notes don't say much, but a couple of PWAs I made have their splash screens working again after the update.
TAG : reactjs
Date : November 11 2020, 04:01 AM , By : Rahman Siddique
Changing styles when scrolling React
Changing styles when scrolling React
I hope this helps . A proper solution could look like this. Of course, this is just a concept. You can fine-tune the activation/deactivation logic using props from getBoundingClientRect other than top (e.g. height, bottom etc). Important that you sho
TAG : reactjs
Date : November 10 2020, 04:01 AM , By : user2181557
During Fetch Method changed to Options with 200 status and succes fetch
During Fetch Method changed to Options with 200 status and succes fetch
around this issue There is nothing wrong in your react/fetch code. You bypass CORS, but probably the api on .pyt1.stg.jmr.pl is understanding it and returning you the response with {"message":"The method is not allowed for the requested URL."}EDIT: t
TAG : reactjs
Date : November 10 2020, 04:01 AM , By : Wenhao Liu
unit testing using enzyme: Pass react props as event to wrapper
unit testing using enzyme: Pass react props as event to wrapper
To fix the issue you can do should have an input test shouldn't involve onChange at all. It can be tested similarly to how the reference suggests:
TAG : reactjs
Date : November 10 2020, 04:01 AM , By : helen_mel
Minimum layout loading experience library in React
Minimum layout loading experience library in React
seems to work fine I assume you are referring to the "blurred" images/text.Your best bet is probably to leverage the placeholder-loading library.
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : user2181268
Trying to fix "Could not find a declaration file for module" from aws-appsync lib cause another error
Trying to fix "Could not find a declaration file for module" from aws-appsync lib cause another error
hop of those help? So I open the file /node_modules/aws-appsync/lib/store.d.ts and there are two types imported from @redux-offline/redux-offline/lib/types:
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : user2181196
React, access value stored in a td through a react ref
React, access value stored in a td through a react ref
this one helps. td doesn't have an attribute names value defined on it and hence ReactDOM.findDOMNode(this.refs.quantity).value doesn't work, you should instead get the inner content you innerText or textContent like
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : user2181186
React Passing Boolean value to component
React Passing Boolean value to component
I hope this helps you . I am trying to pass a boolean value to my component so it can sho an image depending on if it is true or false but i am not very sure how to proceed here. , Change your show image component from
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : Alex Grover
Cannot import local fonts with TypeScript
Cannot import local fonts with TypeScript
To fix the issue you can do You need to declare the font file formats as modules so that TypeScript can parse them correctly.create a fonts.d.ts file and add the following to it
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : Artyom Gorbatuk
How can get Value from child component in react?
How can get Value from child component in react?
like below fixes the issue You can create an onChange action on child component, for example here is your FormComponent: Create this function to handle change:
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : Steve
How to mock a react component's event when fat arrow function is used as event handler?
How to mock a react component's event when fat arrow function is used as event handler?
like below fixes the issue This is a known issue with Enzyme. update() doesn't cause a re-render. This results in triggering original handleClick, because render function was called before mocking the method.A workaround is to use wrapper.instance().
TAG : reactjs
Date : November 09 2020, 04:01 AM , By : Saman Perera
Can't access gatsby environment variables on the client side
Can't access gatsby environment variables on the client side
it helps some times A few steps notes that should solve your problem:console.log(process.env) will always print empty object
TAG : reactjs
Date : November 08 2020, 04:01 AM , By : user2180843
How to conditionally render extra form options on checking dynamically generated check boxes in React?
How to conditionally render extra form options on checking dynamically generated check boxes in React?
should help you out If I understand your question correct, you want the additional sub menu to show once the checkbox is selected, then you can use conditional rendering. Just show/hide the menu on select or deselect of checkbox like so.
TAG : reactjs
Date : November 08 2020, 04:01 AM , By : Andrew Wyatt
Semantic-UI Table, persistent sort
Semantic-UI Table, persistent sort
help you fix your problem Based on your demand,I have created an example for you.And the output is like in the picture.
TAG : reactjs
Date : November 08 2020, 04:01 AM , By : TonyTTH
Correct way of implementing article and it's comments in react env
Correct way of implementing article and it's comments in react env
it should still fix some issue I struggle to edit comment, here is what you could do: After POST comment to DB, I would fetch GET request to refresh the data, and send the GET request to action.
TAG : reactjs
Date : November 08 2020, 04:01 AM , By : Johnathan Chandler
react 'componentWillReceiveProps' use
react 'componentWillReceiveProps' use
I hope this helps . This method is called when props are passed to the Component. can be used to update the internal state of the component from newly received props.Please refer to this link for better understanding. https://developmentarc.gitbooks.
TAG : reactjs
Date : November 07 2020, 04:01 AM , By : user2180515
SharePoint React pnpjs
SharePoint React pnpjs
will help you Apparently those errors occur due to a limitation cased by the use of for generic type parameter declarations combined with JSX grammar, refer this issue for a more details (which is marked as a Design Limitation) To circumvent this err
TAG : reactjs
Date : November 07 2020, 04:01 AM , By : tojesse
preloadedState when injecting asyncReducers
preloadedState when injecting asyncReducers
should help you out You should be able to use dummy reducers in place of dynamically loaded reducers which will be replaced when the real reducers are loaded.
TAG : reactjs
Date : November 07 2020, 04:01 AM , By : user2180240
Using calculation to set state asynchronizely
Using calculation to set state asynchronizely
wish of those help Instead of using state in setState, you could use res.data.percentage. Also the typeHandler must return a value instead of setting it in state given that you are already calling it in setState
TAG : reactjs
Date : November 07 2020, 04:01 AM , By : gnanaprakashgopi
Correct way to specify a size of a React Component
Correct way to specify a size of a React Component
Hope that helps I'm creating a React component that will display some data in a table. Since data are really a potentially big matrix, what I want is creating a sort of a viewport, and this require that my components has some way to specify its size.
TAG : reactjs
Date : November 06 2020, 04:01 AM , By : cam
When i click on button then data loaded below the previous page
When i click on button then data loaded below the previous page
I think the issue was by ths following , I want to load content on new fresh page after clicking on button. , Path is not set correctly.
TAG : reactjs
Date : November 05 2020, 04:01 AM , By : nevermore

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