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: reactjs
NextJS render content from a different page
I’ve two routes like, app/products => pages/products/index.js app/products/1 => pages/products/[page].js Here both app/products and app/product/1 will render the same content (same product items), is it possible to render app/products/1 content in app/products without writing duplicate code? I could find anything similar in their documentation. Thanks. Answer The easiest way is to abstract the content from the page level. No need
Warning Each child in a list should have a unique “key” prop
I have an array of objects which I use to list values in page with map. But from time to time I receive this error. Warning: Each child in a list should have a unique “key” prop. Although keys are unique. Maybe anyone knows what could be wrong here? Answer item needs to be a component, and React component names
Generating a Flicking carousel with React leads to the getComputedStyle error
This question is about egjs-flicking library but perhaps problem is more general. Let us consider two examples of components that will differ only by their render() method. First I provide the whole component. Static case Now the first case is the children of the Flicking container are pre-defined. which gives the following rendered HTML Dynamic case Here they are generated
How to stop flickering of modal on event change
I’m a little stuck on this problem, I need to identify why it happening and how we can solve it. The issue is that I have s nested array of Questions and I’m showing up the Modal onClick when the user hits the option and the Modal shows the Sub questions in the Modal. that are nested into questions items
Update state object with multiple keys using input id
my state looks like this: const [options, setOptions] = useState({ numbers: false, animals: false, greetings: false, food: false, colors: false, other: true }) and I’m trying to update a single boolean based on a checkbox. At first I used a switch statement like so: but I think as I add more options, I’ll want something cleaner, I was hoping something
How to pass as a props an array of String and JSX with NextJs?
i passed as a props an array of strings an JSX but there is an error message “Missing “key” prop for element in arrayeslintreact/jsx-key ” I’m doing all of that to just try to color the text “Trusted” with different colors and not change the div dynamic Answer You’re passing your props in correctly, it’s the react/jsx-key ESLint rule that’s
How to set Formik FieldArray select options at various index values based on another selection
I am using a Formik FieldArray that consists of the following fields: My initialValues setup for this FieldArray is as follows: Based on the selection value for Pet Type, I need to assign a specific set of options to Pet Food. Obviously I need to make sure that values are maintained at each row index level. Assuming I have the
React API not showing the data
I am not able to retrieve content from API every time I reload my page it shows error, please see the attached image, I wanted to find the weather details using Weather API and right now I am using static latitude and longitude. https://i.stack.imgur.com/oqr7i.jpg Answer The problem with your code is that you’re trying to render {weatherData2.current.temp} before the data
How do i use props & map function to insert image urls for cards with logos using React?
I am working on a personal project where NFL Data is displayed by team. I am just learning React and would like to know how to use props and map image urls from an array to display multiple NFL logo cards. I have made a similar website using strictly css, html, and javascript but need to do it in react,