/Javascript/React/Dynamic useState in react

Dynamic useState in react

const data = ["James", "John", "Jessica", "Jamie"];

function App() {
  const [visibilities, setVisibilities] = React.useState(() => data.map((x) => true));

  const handleClick = (event) => {
    const index = parseInt(event.currentTarget.dataset.index, 10);
    const newVisibilities = [...visibilities];
    newVisibilities[index] = !newVisibilities[index];
    setVisibilities(newVisibilities);
  };

  return (
    <div className="App">
      {data.map((value, index) => (
        <h1 data-index={index} onClick={handleClick} className={visibilities[index] ? "selected" : undefined}>
          Hello {value}, you are {visibilities[index] ? "visible" : "hidden"}!
        </h1>
      ))}
    </div>
  );
}

ReactDOM.render(<App />, document.querySelector("main"));

Source: stackoverflow.com

Similar codes

0 vote333 views1 answer
How to create module in react
Javascript React
0 vote379 views1 answer
Reactstrap search bar
Javascript React
3 votes327 views1 answer
React native duplicate resources: Android
Javascript React
0 vote304 views1 answer
React google login
Javascript React
1 vote303 views1 answer
How to use array of object in react
Javascript React
0 vote364 views1 answer
11. Which of the following metals catch fire on reaction with air? A. Magnesium B. Manganese C. Potassium D. Calcium
Javascript React
0 vote335 views1 answer
Top bar in react js
Javascript React
11 votes354 views4 answers
Prototype react
Javascript React
4 votes332 views1 answer
How to empty form after submit in react
Javascript React
0 vote364 views1 answer
React native picker not taaking height on android
Javascript React