Build a Library Manager - Step 6

JavaScript
1

Tell us what’s happening:

Hi guys, my function returns a book by any given author name. No idea why it’s not working.

Just to pre-empt… if i change it to .includes, it makes it so that it only required one of the two authors to work, but that doesn’t work either.

Currently my function returns the number of books by any given author by the exact name.

Your code so far

const library = [
  {
    title: 'Your Next Five Moves: Master the Art of Business Strategy',
    author: 'Patrick Bet-David and Greg Dinkin',
    about: 'A book on how to plan ahead',
    pages: 320,
  },
  {
    title: 'Atomic Habits',
    author: 'James Clear',
    about: 'A practical book about discarding bad habits and building good ones',
    pages: 320,
  },
  {
    title: 'Choose Your Enemies Wisely: Business Planning for the Audacious Few',
    author: 'Patrick Bet-David',
    about:
      "A book that emphasizes the importance of identifying and understanding one's adversaries to succeed in the business world",
    pages: 304,
  },
  {
    title: 'The Embedded Entrepreneur',
    author: 'Arvid Kahl',
    about: 'A book focusing on how to build an audience-driven business',
    pages: 308,
  },
  {
    title: 'How to Be a Coffee Bean: 111 Life-Changing Ways to Create Positive Change',
    author: 'Jon Gordon',
    about: 'A book about effective ways to lead a coffee bean lifestyle',
    pages: 256,
  },
  {
    title: 'The Creative Mindset: Mastering the Six Skills That Empower Innovation',
    author: 'Jeff DeGraff and Staney DeGraff',
    about: 'A book on how to develop creativity and  innovation skills',
    pages: 168,
  },
  {
    title: 'Rich Dad Poor Dad',
    author: 'Robert Kiyosaki and Sharon Lechter',
    about: 'A book about financial literacy, financial independence, and building wealth. ',
    pages: 336,
  },
  {
    title: 'Zero to Sold',
    author: 'Arvid Kahl',
    about: 'A book on how to bootstrap a business',
    pages: 500,
  },
];

function displayBooks(catalog) {
  let output = 'Books in the Library:\n';

  catalog.forEach((book) => {
    output += `- ${book.title} by ${book.author} (${book.pages} pages)\n`;
  });

  return output;
}

function getBookSummaries(catalog) {
  return catalog.map((book) => book.about);
}


// User Editable Region

  function getBooksByAuthor(book, string){

  const output = library.filter((x) => x.author == string);

  return output;




  }

  let nine = (getBooksByAuthor(library, "Jeff DeGraff and Staney DeGraff"));

console.log(library)



// User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0

Challenge Information:

Build a Library Manager - Step 6

2

Welcome to the forum @bennycjonesmusic

Your function is accessing a global variable instead of the parameter passed to the function.

Happy coding

3

ohh! so it is. I don’t know how i didnt spot that. thank you so much for your help. you guys rock

1 Like