/Javascript/React/Filter-vs-map-reactjs-and-jsx

Filter-vs-map-reactjs-and-jsx

{              
  books && books
    .filter(book => book.shelf.toLowerCase().includes(shelf.toLowerCase()))
    .map((book, index) => {
      return (
        <Book
           key={book && book.id ? book.id : index}
           changeShelf={this.props.changeShelf}
           book={book} />
      );
    })
}

Source: stackoverflow.com

Similar codes

0 vote368 views1 answer
Installe datatable to reactjs project
Javascript React
0 vote314 views2 answers
Datepicker react native
Javascript React
2 votes375 views2 answers
React native image swiper
Javascript React
18 votes367 views2 answers
How to store an array in localstorage reactjs
Javascript React
0 vote372 views1 answer
React Hook useEffect has a missing dependency: Either include it or remove the dependency array. If changes too often, find the parent component that defines it and wrap that definition in useCallback. (react-hooks/exhaustive-deps) eslint
Javascript React
0 vote375 views1 answer
React Liked Component
Javascript React
3 votes390 views2 answers
Error duplicate resources react native
Javascript React
0 vote348 views1 answer
Change poiter text input color react native
Javascript React
0 vote379 views1 answer
Scrollbar automatically scroll down as new divs are added reactjs
Javascript React
23 votes369 views6 answers
React native shadow
Javascript React