react-functional-component

问题 I have a component that I use for a star rating, I decided to use FA icons to do the job by using half stars. Every works great, besides the CSS. I've successfully flipped some of the stars (FA icons only go to one side) so the stars align correctly, they just don't touch. I just need some advice on the easiest way to handle it. Rater.js import React, { useState } from 'react' import {FaStarHalf} from "react-icons/all"; import './Rater.css' const Rater = () => { const [rating, setRating] =

问题 I'm trying to implement a react-table using this guide: https://github.com/tannerlinsley/react-table/blob/master/docs/quickstart.md At one point in the guide, it says to create your data using React.useMemo: const columns = React.useMemo( () => [ { Header: 'Column 1', accessor: 'col1', // accessor is the "key" in the data }, { Header: 'Column 2', accessor: 'col2', }, ], [] ) When I do this, I copy and paste this line into my code (replacing the data with my own data): class Blog extends

问题 import { useEffect } from "react"; export const Routes = () => { useEffect(() => { console.log("red") }, []); const a = [{ name: "sathish" }]; const b = [{ name: "pandi" }]; const c = [{ name: "suren" }]; if (false) { return a; } else { return b; } }; With this code I have error like × Hooks can only be called inside the body of a function component. 回答1: Take a look at the Rules of Hooks to understand their restrictions and what they're meant to be used for. Don’t call Hooks inside loops,

问题 I am having 3 materialUI TextFields which are render n number of times (n is an integer input from the user before rendering the form field, where I stored it in a variable named groupMembersCount). I am getting it dynamically rendered by this way: export default function DynamicGroupMember() { const [groupMembersCount, setGroupMembersCount] = useState(0); const [show, setShow] = useState(false); const [groupDetails, setGroupDetails] = useState([ {fullName: "", phoneNo: "", gender: ""}, ]);

问题 I am having a react-chartjs with material-table integrated, find it in this link: https://codesandbox.io/s/elastic-brook-okkce?file=/src/Dashboard.jsx As you may see that on the click of any bar, a table is populated. The values in that table are fetched from the backend response (I've not written the code for the same here, but it is working in my PC properly). That Material-table takes in the "data" prop having an object("chartData") assigned to that prop that stored the response from the

问题 I have defined a useState object as follow: const [groupDetails, setGroupDetails] = React.useState([ { fullName: "", phoneNo: "", gender: "" }, ]); const [state, setState] = React.useState({ fullName: "", phoneNo: " ", email: "", gender: "", idProof: "", noOfPeople: "", bookingId: "", detailsOfPeople: groupDetails, }); I have done populating the nested array groupDetails , but when I do: console.log("state object:",state); The field "detailsOfPeople" that holds that array groupDetails shows

问题 I have a form where user can generate new inputs to the form he wants to submit, however i am stuck on handling the values of the new generated inputs as i need to store them in the state . My code const [supply_detail_data,setSupply_detail_data]=React.useState({ suppCashDetail:[{text : [],val:[]}] }); const addNewSuppDetailInput = () => { setSupply_detail_data( {suppCashDetail: [...supply_detail_data.suppCashDetail,{text : [],val:[]}]} ) } function supply_detail_handler(event){ // should