CODEWITHSUNDEEP
javascripthtmlarrays
Lucas Smallwood
Lucas Smallwood

Reputation: 25

Combining two arrays into a new string array

Sorry for the confusing title but I'm not really sure how to explain in the title alone. I want to create a new array from two other arrays with words between the two of them. In other words I want to basically create this:

var author_title = ["authors[i] wrote books[i]"];

so one value of the array would be "Tolstoy wrote War and Peace." Obviously the code above doesn't work or else I wouldn't be here. So how can I combine these two arrays like so? Here is the code I have so far minus some of the html stuff. 

var books = ["War and Peace","Huckleberry Finn","The Return of the Native","A 
Christmas Carol","Exodus"];

var authors = [];

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

var name = prompt("What is the last name of the author who wrote " +books[i]+ 
"?");
authors.push(name);
}

document.write("***************************");

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

document.write("<br>");
document.write("Book: "+books[i]+ " Author: "+authors[i]);


}
document.write("<br>");
document.write("***************************");

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

var author_title = ["authors[i] wrote books[i]"];

}

Upvotes: 1

Views: 90

Answers (3)

intentionally-left-nil
intentionally-left-nil

Reputation: 8274

You can also solve this a bit more elegantly using map

const books = ["War and Peace","Huckleberry Finn"];
const authors = ["Leo Tolstoy", "Mark Twain"];

const author_title = books.map((book, i) => `${authors[i]} wrote ${book}`);
console.log(author_title)

Upvotes: 1

ilsotov
ilsotov

Reputation: 162

const authorTitle = books.map((book, i) => `${authors[i]} wrote ${book}`);

Upvotes: 0

Ashok Bhaskar
Ashok Bhaskar

Reputation: 361

Replace 

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

var author_title = ["authors[i] wrote books[i]"];

}

with

var author_title = [];
for (var i = 0; i < books.length; i++)
{

author_title.push(authors[i] + " wrote " + books[i]);

}

Upvotes: 3

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