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&…
Tag: use-state
My input didn’t update value when I update state
I made two components, one is sign in component and one is form input. I pass props to form input to render some input form. And I also had a state to save the value of this inputs (two way binding). Rendering is fine till now. The problem when I submit form and set state to initial, i saw the
What’s going on with React’s useState?
So here is Piece of Code for onClick EventHandler in React code : Output : before 1st update inside 1st update After 1st update After 2nd update inside 2nd update Expected Output : before 1st update inside 1st update After 1st update inside 2nd update After 2nd update Could Someone Explain? Also, The example …
updating a useState to the value that it’s already holding inside of a custom React hook causes infinite re-render
The above will cause an infinite re-render. I had to solve by doing this: This is not the behavior inside of React components. Inside a component, if I set a useState to true when it is already true, then it will not cause re-render. Can someone confirm this behavior and explain why it causes infinite re-rend…
useState is not re-rendering with push and pop on an array state
I’m attempting to update the usersData variable created using useState so that anytime someone clicks on add user, a data object is added to the beginning of usersData, but the problem is that it only works with spread operators and not with push, pop, or unshift operations, as seen in the code below. T…
useState react error Too many re-renders mergin state props input
I am having problems with updating state by mergin selected input props in one string in order to pass a proper path with values to API. I have something like this in logic : The purpose of the code is to get two strings values from the form component (I am using Formik) and this actually works just fine. But
UseState renders me the previous state
I have two inputs that change the text of a P tag at the same time, but the problem is that the render that shows me is always the previous value that was saved. I understand that I have to use a useEffect to render the component again and show the current value, but in the inputs handleChange if or
How to manage multiple states in React? [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed last year. This post was edited and submitted for review 10 months ago and failed to reopen the post: Or…
Using prevState Callback function in UseState react Hook
I have some array of products inside filteredProducts variable and wanted to sort them according to the price and newly added products. When using prevState like this without having { } in the callback function, the code runs fine. But when using { } for the prevState callback function like this , it is just …
React form how to get user data based on a toggle on/off
I have a form in React JS with one toggle/switch. If toggle/switch is on, then two inputs appear in the screen. So i want to get user data if the user types in inputs and the toggle/switch is on and stays on. So if the user types in inputs but he toggles/switches again to off then input values get reset