I’m trying to change the set state value every two seconds and can run in a loop but that does not seem to work with the below logic. Excerpt from my code When I try to console log the state, I get three values at a time after two seconds. How can I set the state every two seconds and
Tag: reactjs
Why is my setState not working when passed as an argument to a function?
For the function fetchApiAndSetStateForWrongGuesses() I pass it two parameters called randNum and wrongGuess. randNum is just a number but wrongGuess is supposed to be a state. The problem is that when I pass wrongGuess to the function fetchApiAndSetStateForWrongGuesses() the setState doesn’t works. By …
React redux reducer as UseEffect dependency causes infinite loop
I am just diving deep into React. But the useEffect React hook still got me confused. I know that I can pass dependencies as an array to it to control rendering of the component. I have used props and local state to do and it works. What’s got me still confused is when I pass redux reducer as a dependen…
Disabling a button if an immutable list contains empty value
If a user enters a blank value in a textbox, the button should be disabled. I’m doing this check using the following filter.But this does not work.Please advice. Answer If you are using React you could do something like this, imagine you had an input field with an onChange. You can set the state in the …
Render a custom component using react-google-maps – ReactJS
I want add a custom marker component to the map but I notice that using react-google-maps/api does not render custom components. As a simple example I used the following code: It’s possible to do such things with this framework? Also, is possible to add buttons components to an infoBox or, rendering an …
How to render a boolean value in an array with condition
what I’m trying to do is to render every item of the array with the certified value next to it. isCertified is a boolean value in each item of my array I have this error : Error: Objects are not valid as a React child (found: object with keys {name, id, isCertified}). If you meant to render a collection…
Duplicate components in React after click button
REACT Problem – I would like to do something like this to start the function of creating a new component after clicking on the button. Moreover I want the div element with its content to appear every time I click a button. (in my case my own component) For example when i want to create questionnaire and…
Does Next.js SSG support dyamic data?
I am making a webapp using Next.js and have a question regarding the Static generated sites. My webapp is a blog, and requires a path for each blog entry in the database. If I were to statically generate my webapp and host it on Vercel, would the getStaticPaths function update the paths when a new entry is ad…
Why cant I export and use my custom js styles?
This my main class And this is my style class called FoodStyles.js They both are in the same folder but still styles cannot be accessed Answer This could be the solution to your problem: (You need destructuring as done in line 7 for your styles to be used in your file.) With React, which fully embraces the ES…
‘state’ is not defined no-undef
I use a tutorial to learn React and I got stuck pretty quickly. In the tutorial they use this code: And everything works great. But in my case, I get this error: srccomponentscounter.jsx Line 4:3: ‘state’ is not defined no-undef Search for the keywords to learn more about each error. After trying everything, …