How to pass the array index value from array mapping to onClick function in React?

Question

How do I pass the book.id value from the array mapping to the onClick function?

import { bookData } from './data'; const App = () => { const [state, setState] = useState(bookData) const handleDelete = (bookId) => { return ( console.log(bookId) ) }; return <div className='bookCards'> {state.map((book) => { return ( <div className='bookCard' key={book.id}> <img className='coverImg' src={ book.coverimg } ></img> <div>Title: { book.title }</div> <div>Author: { book.author }</div> <div>Year: { book.year_written }</div> <div>Edition: { book.edition }</div> <button onClick={handleDelete({ book.id })}>delete</button> </div> ) })} </div> export default App;

<button onClick={e => handleDelete(book.id)}>delete</button> — Mehdi Dehghani
– Mehdi Dehghani, Commented Jun 23, 2022 at 18:28

Mehdi Dehghani · Accepted Answer · 2022-06-23 18:37:40Z

You need to call it and pass the id to it like so:

<button onClick={e => handleDelete(book.id)}>delete</button>

Related documentation: Passing Arguments to Event Handlers

And also change the body of the handleDelete to just console.log(bookId) if you like to see the passed id printed on console.

const handleDelete = (bookId) => { console.log(bookId) };

Collectives™ on Stack Overflow

How to pass the array index value from array mapping to onClick function in React?

1 Answer 1

Comments

Hot Network Questions