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Advanced Node.js Development

You're reading from   Advanced Node.js Development Master Node.js by building real-world applications

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788393935
Length 592 pages
Edition 1st Edition
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Author (1):
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Andrew Mead Andrew Mead
Author Profile Icon Andrew Mead
Andrew Mead
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Table of Contents (12) Chapters Close

Preface 1. Getting Set Up FREE CHAPTER 2. MongoDB, Mongoose, and REST APIs – Part 1 3. MongoDB, Mongoose, and REST APIs – Part 2 4. MongoDB, Mongoose, and REST APIs – Part 3 5. Real-Time Web Apps with Socket.io 6. Generating newMessage and newLocationMessage 7. Styling Our Chat Page as a Web App 8. The Join Page and Passing Room Data 9. ES7 classes 10. Async/Await Project Setup 11. Other Books You May Enjoy

Message generator and tests


In this section you are going to break out some functionality currently in server.js into a separate file, and we're also going to set up our test suite so that we can verify if those utility functions are working as expected.

For the moment, our goal is going to be to create a function that helps us generate the newMessage object. Instead of having to define the object every single time, we'll simply pass in two arguments to a function, the name and the text, and it'll generate the object so we don't have to do that work.

Generating the newMessage object using the utility function

To generate newMessage, we are going to make a separate file that we load into server.js with a method we call instead of defining the object. Inside the server folder, we'll make a new directory called utils.

Inside utils we'll make a file called message.js. This will store our utility functions related to messaging, and in our case, we'll make a new one called generateMessage. Let's make...

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