Way to determine checkbox checked in react (useState)

Question

This is my first time to develop a react application. I tried to implement checkboxes in each row of a table and check which of the rows are selected.

I used useState hook to make checked and onChange events, but seems the values are not refreshing when I check then uncheck the checkbox.

I would like to ask how to add a logic to remove the unticked values on the hooks.

T1 Checkbox A- Checked Checkbox B- Checked CheckedMap- A,B

T2 Checkbox B- Unchecked CheckedMap- A,B // Unticked Checkbox B is also stored in CheckedMap

Thank you for your help.

export default function({ infinite }) {
  const [checkedMap, setCheckedMap] = useState(new Map());
}

const handleCheckedChange = transaction_seq => {
    let modifiedMap = checkedMap;
    modifiedMap.set(transaction_seq, !checkedMap.get(transaction_seq));
    setCheckedMap(modifiedMap);
  };

const columns = [
    {
      Header: "Transaction(s)",
      className: "left",
      columns: [
        {
          id: "checkbox",
          accessor: "checkbox",
          Cell: ({ row }) => {
            return (
              <input
                type="checkbox"
                className="checkbox"
                checked={checkedMap.get(row.original.transaction_seq)}
                onChange={() =>
                  handleCheckedChange(row.original.transaction_seq)
                }

Answer 1

This is the way how to use controlled checkbox with react useState hook.

const { useState } = React; // --> for inline use
// import React, { useState } from 'react';  // --> for real project


const App = () => {
  const [checked, setChecked] = useState(false)
  const handleClick = () => setChecked(!checked)
  
  return <input onClick={handleClick} checked={checked} type="checkbox" />
};


ReactDOM.render(<App />, document.getElementById('root'))

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.9.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.9.0/umd/react-dom.production.min.js"></script>
<div id="root"></div>

Answer 2

You may get an error using onClick for the function. Instead using onChange:

    import { useState} from "react";

    export default function App() {
      const [checked, setChecked] = useState<boolean>(true);
      
      return (
        <input name="checked" type="checkbox" checked={checked} 
          onChange={e => setChecked(!checked)} />
      )
    }