i.e Here token is not part of useEffect but I want to add it as a dependencies of useEffect. Can I do this? If not then why? Answer i.e Here token is not part of useEffect but I want to add it as a dependencies of useEffect. Can I do this? If not then why? Yes, you can include, or
Tag: react-context
Unexpected output using react-router-dom with React’s Context API
For a small project of mine, I’m trying to implement the most basic authentication as possible, using the React context API without Redux. I created a context, and wrapped my <App /> component in it like so; <AuthProvider></App></AuthProvider>. Because I want to keep the authenti…
Cannot destructure an object
I fetched and object which contains two properties, one is a number and one is an array. So I right away accessed the array and then assigned to a state and then passed each item to another component through context api. And it does not working. Here is my code: In this code ‘correct_answer’ is a …
How do you use React context inside App.js file?
I am building a multi-language app. I am using react-intl. So far, so good. I made a state of the language with context api, so I can switch it easily. However I get this error when I try to use the state in App.js: TypeError: Object is not iterable (cannot read property Symbol(Symbol.iterator)). Here is my c…
react context provider return undefine as component
this the first time to me with context in Reactjs and have this problem Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it’s defined in, or you might ha…
React how to make conditionally rendered navigation persist
I am in the process of learning React and am creating a React desktop app where the side-navigation must change depending on the user’s current location (determined by standard navgation buttons in the App body). The application is accessible here: https://codesandbox.io/s/conditional-navigation-di8t5?f…
React Context Provider all children re rendering
can someone explain to me why the next code re renders all children components from the provider console everytime button is clicked, all components re rendering but if context provider is wrapped in a component as follows console when button is clicked only the component consuming the context (and the compon…
React Hooks: useState updater function: Why does this hook remove the object upon drag?
I have a marker on a map which takes this function upon dragging: That function fires another function updateUserMarker, which is coming from a component via context: It consumes the index, a new object which contains updated lat and long from the event, & appends an id which will also be from the event. …
I get an Error from React: Maximum update depth exceeded
I wrote my codes and i think everything is right but i get an error from react.js Error: Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops. App.js: User…
Context value (coming from state) gets cleared while refreshing the page
I have a react application which I am using context API as a state management in it. I get the a specific value from the server, assign it to a component state and then store it as the context value. But, the problem is that any time the page refreshes and reloads, the context value gets cleared as the aforem…