All Questions
9
questions
0
votes
0
answers
41
views
DOM update incomplete in D3 when used with React
I have a problem updating the DOM elements in D3 in a React Component.
I have a component which gets data from a Slider in the main App.
The slider filters the data, removing or adding elements. When ...
3
votes
6
answers
2k
views
When to use functional update form of useState() hook, eg. setX(x=>x+1)
Normally when we need to update a state in a functional component, we do something like this:
function Example() {
const [count, setCount] = React.useState(0);
return (<div><p>You ...
- 9,129
2
votes
2
answers
1k
views
React Lifting State Up
I was studying this part of React documentation: https://reactjs.org/docs/lifting-state-up.html.
I have a similar problem in a project of mine, but with a slight difference. We can use the same ...
- 115
1
vote
0
answers
19
views
How update and remove redux state reducer
When I move a user I would like to update new group the reducer and remove user in old groups
/mystate
// groups: [
// {
// users: [
// '1A',
// '1B'
// ],
// id: '2',
// ...
1
vote
0
answers
96
views
D3js: How to update children inside <g> when using brush selection?
I'm trying to modify a dataviz layout in order to group a rect and a a below a g element. Display works, but when I updated my brush selection everything go to hell as event that should be remove from ...
- 42.4k
1
vote
3
answers
875
views
Warning of Do not mutate state directly. Use setState() in reactjs
I'm new to reactjs here is the code in which i want to update the states by using the "=" sign because when i try to update state by using setState method it gives error as I need to update an object ...
- 58
0
votes
0
answers
68
views
Migration to material ui v.4 x x problem with css
i have a difficult task of migrating the material ui version from 0.20 to 4.9.0 (the latest). I've changed all the imports and changes of components but i have a MAJOR problem with the css. We use a ...
- 7,284
1
vote
1
answer
1k
views
How to update React Google Map after receive data from server
How to update ReactGoogleMap after receiving data from the server?
This is how I create Google Map using react-google-maps API.
import React from "react"
import { compose, withProps } from "...
- 369
0
votes
1
answer
306
views
How to update webpage based on selection from dropdown list?
I have a webpage that is displaying a list of movies from an API. As you can see in my code, right under the render method I have three commented out sort methods that works fine, when I uncomment one ...
- 218