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Node Cookbook: Second Edition

You're reading from   Node Cookbook: Second Edition Transferring your JavaScript skills to server-side programming is simplified with this comprehensive cookbook. Each chapter focuses on a different aspect of Node, featuring recipes supported with lots of illustrations, tips, and hints.

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Product type Paperback
Published in Apr 2014
Publisher Packt
ISBN-13 9781783280438
Length 378 pages
Edition Edition
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Author (1):
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David Mark Clements David Mark Clements
Author Profile Icon David Mark Clements
David Mark Clements
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Table of Contents (18) Chapters Close

Node Cookbook Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Making a Web Server 2. Exploring the HTTP Object FREE CHAPTER 3. Working with Data Serialization 4. Interfacing with Databases 5. Employing Streams 6. Going Real Time 7. Accelerating Development with Express 8. Implementing Security, Encryption, and Authentication 9. Integrating Network Paradigms 10. Writing Your Own Node Modules 11. Taking It Live Index

Writing to a CSV file


A flat file structure is one of the most elementary database models. The columns can either be of a fixed length or used with delimiters. The Comma Separated Values (CSV) convention conforms to the idea of delimited flat file structure databases. While it's called CSV, the term CSV is also applied as a broad blanket term to any basic delimited structure that consists of one record per line (for example, tab-separated values).

We can follow a brittle approach to construct CSV structures simply by using a multidimensional array and the join method, as follows:

var data = [['a','b','c','d','e','f','g'], ['h','i','j','k','l','m','n']];
var csv = data.join("\r\n");  /* renders:  a,b,c,d,e,f,g,h,i,j,k,l,m,n   */

However, the limitations of this technique quickly become apparent. What if one of our fields contains a comma? Now one field becomes two, thus corrupting our data. Furthermore, we are limited to just using commas as delimiters.

In this recipe, we will use the third-party...

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