I came accross this code const [count, setCount] = useState(0); useEffect(() => { const timerId = setTimeout(() => setCount(count + 1), 1000); return () => setTimeout(timerId); }); I know useEffect syntax as useEffect(() => { something...which is executed }); but…
i have one table structure in my react app using jsx, here is my code... <div> <TableWrapper className="table-data-view table-responsive"> <ChartViewWrapper> <table align="center" className="record"> <thead> {!charts[0] || charts[0].freq === 6 ? ( <tr key="1"> <td>Date</td> <td colSpan="3">MON</td> <td colSpan="3">TUE</td> <td colSpan="3">WED</td>…
Im using D3 with react useEffect hook and i have click method wrapped with useCallback hook and its updating the state, but when I'm clicking the element state is not updating at all. To stop re-rendering the D3 SVG element…
Here i have my flask function that returns the image: @app.route("/getResults", methods=['GET']) def get_results(): print(request) job_key = request.args["id"] filename = '/home/pat/projets/giftmaker/webapp/public/workingDir/1/test.png' return send_file(filename, mimetype='image/png') then I have my attemp to read it: export function Download ({jobID}) { const [img, setImg]…
Strangely, I have <Avatar> that works with single object parse using .map <Flex> <div></div> {studentsjson.map((thr) => ( <Avatar color="red" key={thr.id} component={Link} to="/complete"> {thr.Name} </Avatar> ))} </Flex> However, below does not work { teacher.map((thr) => thr.students.map((stu) => { <Avatar color="red" key={stu.id}…
I have the following component: const MyComponent: React.FC = function(){ return "hello world" } It's correct, and it's not false, however, typescript is complaining that this is not correct because the return type is a string, it thinks that it…
I am trying to retrieve article data from my backend api using a fetch request and display it on screen. The request retrieves the data successfully, however when I try to update the state of the component variables using the…
How do I create a modal window that is used almost everywhere on ios? It opens from the bottom, contains some content, there are 2 buttons on top: cancel and save, and the name in the center. This is the…
I want to access the search params in a Component or in Layout File to get the lang. There is an way to do that? I Read that is impossible to get the searchparams in Layout File, but there is…
I am trying to call two handlers, but only one of the handlers executes: import React, { useState } from 'react'; import classes from './Buy.module.css'; import HouseList from './HouseList'; import './style.css'; const Buy = () => { const [noOfCards, setNoOfCard]…