I am working with the next js to handle a question form, I have multiple questions that have multiple answers, and the user may select one or multiple tags for a question. if a user selects one or more tag to answer a question it must increment the counter just one time, If a user unselect a tag it must
Tag: reactjs
How to prevent useEffect() run twice after running a function in context consumer and prevent useContext() to re-render
I’m learned that React will re-render after state changed e.g. setState from useState(), calling the function or variable from useContext() variable. But now I’m don’t understand that why I get the ESLint warning call the context function inside the useCallback() without dependency in the li…
How to convert html content in to one string
let html=”Some data some more data with some other data need to convert into string ” I want it should be become a single string like str=”Some data, some more data, some other data, need to convert into string”; This I need in Reactjs functionality. In comment section I have shared th…
How do I toggle the elements with its corresponding button by mapping through an array in ReactJS?
I’m mapping through an array from a JSON. How do I get the button to toggle the display of the div containing listOfGrades with the ID? So 20 buttons for 20 listOfGrades divs, and each button should toggle its own corresponding div. Thanks! Answer You can add a property in your data which keeps track of…
Issues with conditional rendering react
So I have read quite a lot about react conditional rendering on the official docs and on STO as well but I have some issues and doubts. My objective here is I’m trying to check if the value of {game.embed_url} is NULL then no <iframe> should be rendered, else <iframe> should be rendered, Ofc…
React Native Lottie Animation Only Plays On First Tap
So essentially, I want to play the lottie animation everytime it is tapped. Here is my UI code for the lottie animation: Here is my state code for the lottie animation: On the first tap, the animation play perfefctly fine. But on all other taps, the animation won’t play. I tried pausing the animation in…
ReactJS OnClick Function that Changes State Not Rerendering
I am trying to create a floodfill visualization that allows the user to enter the grid size and the grid adjusts dynamically however, the grid is composed of buttons that have an onClick function that would then trigger the floodfill. I read up on the setState function and it says its asynchronous which is th…
Replicate element in React
Hello thanks for the help, with the following code in react I want to replicate the click button every time I click on it. Currently nothing happens, but if the console shows that the array grows. Here the sandbox: https://codesandbox.io/s/charming-glitter-0ntxmj?file=/src/App.js Answer Updating a local varia…
How to split a string into two and output them as two different blocks?
There is a React component – ‘function Product (props) { } export {Product} Question: The variable prod_status: status can contain several values (for example, “new,promotion”, if so, you need to split it into two words and create a separate block for each, since now the block comes wi…
React: Change / Iterate an Element Color Every Second
Coding World Say I have the above, I want to iterate through each element one at a time and turn the colour to gold. So at any one time only one of the words should be gold. First Hello should be gold, then Coding should be gold and then World should be gold. I tried to do it so it