/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 vote219 views1 answer
React bootsrap color picker
Javascript React
18 votes208 views2 answers
Store data in localstorage react
Javascript React
0 vote213 views1 answer
Activez la compression de texte react js
Javascript React
0 vote140 views1 answer
Import pdfmake in react
Javascript React
0 vote210 views1 answer
How to use radio buttons in react class-based components
Javascript React
3 votes198 views3 answers
React ReferenceError: regeneratorRuntime is not defined
Javascript React
1 vote188 views1 answer
React manifest.json 404 (not found)
Javascript React
1 vote198 views3 answers
Bash: react-scripts: command not found
Javascript React
2 votes190 views1 answer
This.setstate is not a function in react native
Javascript React
0 vote181 views1 answer
Make 2div in row react js
Javascript React