how to useState in react to update an array code example

Example 1: how to get checked row data using react table in react js

getTrProps={(state, rowInfo) => {
  if (rowInfo && rowInfo.row) {
    return {
      onClick: (e) => {
        this.setState({
          selected: rowInfo.index
        })
      },
      style: {
        background: rowInfo.index === this.state.selected ? '#00afec' : 'white',
        color: rowInfo.index === this.state.selected ? 'white' : 'black'
      }
    }
  }else{
    return {}
  }
}

Example 2: how to access array datat in class component react

import React, { Component } from 'react'
import './TourList.scss';
import Tour  from '../Tour/Tour';
import { tourData } from './tourData'; //impoert array of data
export default class TourList extends Component {
    state={
        tours:tourData // store array of data in state
    }
    render() {
        const {tours}=this.state // store  state in variable
        

        return (
            <section className="toulist">
            {tours.map(tour=>{ // using map method to destructure
                return <Tour key={tour.id} tour={tour} />; //pass as props
            })}
            
            </section>
        )
    }
}
//----------------------------------------------------
 //how to access props in class component
   const {id,city}=this.props.tour//props