Below is my Header component in react: I have used ContextAPI for efficient state Management.CryptoState is used for this purpose.I have imported the state in Header and getting the necessary props using object-destructuring. Below is my Context-file: I am getting this error in Header component:Header.js:8 Uncaught TypeError: Cannot destructure property ‘currency’ of ‘(0 , _CryptoContext__WEBPACK_IMPORTED_MODULE_1__.CryptoState)(…)’ as it is undefined. Answer
Tag: react-state-management
Showing/hiding React components does not maintain internal state
I am trying to hide/show components in React based on some state. The main issue I am facing is to maintain the internal state of the components during hiding and showing. The below is the code that does what I expect and maintains the state of each of the components (Africa, Europe, America, Asia): However, I am not satisfied with
REACT JS reset integer counter
I have this function that gets data from a service using a fetch api call and waits for the response using async and await. If the response isn’t null, it loads a react component and passes the fetched data to the component, it uses react state to manage data content. Because of the wait, i had to introduce an integer
React Hooks: Passing state prop is NOT a function?
I am passing state hooks as props to my components and my ‘setCity’ works perfectly fine but when I try implementing setFlag I get an error saying “Searchbar.jsx:15 Uncaught TypeError: setFlag is not a function” So why can I set the value of city but not flag? I pass the props from ‘App’ to ‘footer’ which passes to ‘searchbar’. Answer
Usestate increment by 1 not working in setInterval
For some reason this will never go past two when I run the setCurrentPage but if I increment it like this It works as expected. I am guessing it has something to do with the useEffect or the setInterval but not really a 100% sure why. Answer A new handleScroll function is created on every render in your code. The
State Not Getting Set As Required (React, Hooks)
I am having trouble setting up a state of my component. Kindly check the details as below Codesandbox link – https://codesandbox.io/s/goofy-glade-z32zp This is my App Component containing 4 sub components Checkbox Radio Select NouiSlider Coming to the problem whenever I try to set state from the radio checkbox or select it does set the state and updates correctly via setAnswerState
How do I stop state element being passed to child component before it is set?
I’m writing a weather forecast app with React. I’m fetching the data from openweathermap.org API. But to use that I need to know user’s location. So I use other API’s in sequence as well to identify user IP, location, and then weather data according to that location. At each fetching state I update the initial states with information fetched. For