barcode scanner react js

1import React, { Component } from 'react'import BarcodeReader from 'react-barcode-reader' class Test extends Component {  constructor(props){    super(props)    this.state = {      result: 'No result',    }     this.handleScan = this.handleScan.bind(this)  }  handleScan(data){    this.setState({      result: data,    })  }  handleError(err){    console.error(err)  }  render(){     return(      <div>        <BarcodeReader          onError={this.handleError}          onScan={this.handleScan}          />        <p>{this.state.result}</p>      </div>    )  }}

1function BarcodeScanner (props) {
2
3const [barcodeInputValue, updateBarcodeInputValue] = useState('')
4
5function barcodeAutoFocus() {
6    document.getElementById("SearchbyScanning").focus()
7  }
8
9  function onChangeBarcode(event) {
10    updateBarcodeInputValue(event.target.value)
11  }
12
13  function onKeyPressBarcode(event) {
14    if (event.keyCode === 13) {
15      updateBarcodeInputValue(event.target.value)
16    }
17  }
18
19return () {
20            <div>
21                <input
22                  autoFocus={true}
23                  placeholder='Start Scanning'
24                  value={barcodeInputValue}
25                  onChange={onChangeBarcode}
26                  id='SearchbyScanning'
27                  className='SearchInput'
28                  onKeyDown={onKeyPressBarcode}
29                  onBlur={barcodeAutoFocus}
30                />
31            </div>
32}
33
34}