Write a function searchBooks which returns ALL the books written by a specific author and return the list of the book titles as a string, separated with comma if there are more than one titles. If these is no author in the library then return 'NOT FOUND'. Example dataset: library = [ { author: 'Bill Gates', title: 'The Road Ahead', libraryID: 1254} ];.

Question

23-03-2020
Computers and Technology

contestada

Write a function searchBooks which returns ALL the books written by a specific author and return the list of the book titles as a string, separated with comma if there are more than one titles. If these is no author in the library then return 'NOT FOUND'. Example dataset: library = [ { author: 'Bill Gates', title: 'The Road Ahead', libraryID: 1254} ];.

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abdullahfarooqi abdullahfarooqi · Answer 1 · 2020-03-26T02:06:29+01:00

Answer:

var library=[{author:'Bill Gates',title:'The Road Ahead',libraryID:1254},

{author:'Abdul Kalam',title:'India 2020',libraryID:1243},

{author:'Abdul Kalam',title:'Ignited Minds',libraryID:1200},

{author:'Abdul Kalam',title:'Inspiring thoughts',libraryID:1200},

{author:'Aristotle',title:'Metaphysics',libraryID:1200}

];

//author of the book to be searched

var authorName='Abdul Kalam';

//document.write() will write in the html page

a=searchBooks(library,authorName);

books=a[0];

authorNames=a[1];

//<h1></h1> is used to make heading Books

document.write("Books:\n");

for(i=0;i<books.length;i++)

document.write(books[i]['author']+" --> "+books[i]['title']+" --> "+books[i]['libraryID']+"<br>");

document.write("Titles:\n"+a[1]);

function searchBooks(library,authorName){

//empty string to assign book names

list_of_titles='';

books=[];

//reading each book from 0th position to last

for(i=0;i<library.length;i++){

//if author is authorName then add it to list_of_titles

if(library[i]['author']==authorName){

books.push(library[i]);

list_of_titles+=library[i]['title']+",";

}

//removing the last comma

list_of_titles=list_of_titles.slice(0,-1);

//if list_of_titles is empty return NOTFOUND

if(list_of_titles=='')

return 'NOT FOUND';

//if books are found return list_of_titles

else

return [books,list_of_titles];

//returning the list of books and titles

}