<script id="jsbin-javascript">
var book1;
var book2;
var getBookInfo;
var buildBook;

buildBook= function(author,title){
  return {
    author:author,
    title:title
  };
};

getBookInfo = function(book){
  return book.author + "created the masterpiece, " + book.title; };

book1= buildBook("JK Rowling","Harry Potter");
book2= buildBook("Matthew Stevens","The Arc");

console.log(getBookInfo(book1));
console.log(getBookInfo(book2));
</script>


<script id="jsbin-source-javascript" type="text/javascript">var book1;
var book2;
var getBookInfo;
var buildBook;

buildBook= function(author,title){
  return {
    author:author,
    title:title
  };
};

getBookInfo = function(book){
  return book.author + "created the masterpiece, " + book.title; };

book1= buildBook("JK Rowling","Harry Potter");
book2= buildBook("Matthew Stevens","The Arc");

console.log(getBookInfo(book1));
console.log(getBookInfo(book2));
</script>