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Learning Node.js for .NET  Developers

You're reading from   Learning Node.js for .NET Developers Build server side applications with Node.js

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Product type Paperback
Published in Jun 2016
Publisher
ISBN-13 9781785280092
Length 248 pages
Edition 1st Edition
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Author (1):
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Mark Vasilkov Mark Vasilkov
Author Profile Icon Mark Vasilkov
Mark Vasilkov
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Toc

Table of Contents (16) Chapters Close

Preface 1. Why Node.js? FREE CHAPTER 2. Getting Started with Node.js 3. A JavaScript Primer 4. Introducing Node.js Modules 5. Creating Dynamic Websites 6. Testing Node.js Applications 7. Setting up an Automated Build 8. Mastering Asynchronicity 9. Persisting Data 10. Creating Real-time Web Apps 11. Deploying Node.js Applications 12. Authentication in Node.js 13. Creating JavaScript Packages 14. Node.js and Beyond Index

Handling user-submitted data


We're going to implement the classic guessing game of Hangman (see https://en.wikipedia.org/wiki/Hangman_(game)). Users will be able to post new words to guess, and to guess words posted by others. We'll look at creating new games first.

First, we'll add a new module for managing our games. For now, we'll just store our games in the memory. If we want to put games in some persistent storage in future, this is the module we will change. The interface (that is, the functions added to module.exports) can remain the same though.

We add the following code under services/games.js:

'use strict';

const games = [];
let nextId = 1;

class Game {
    constructor(id, setBy, word) {
        this.id = id;
        this.setBy = setBy;
        this.word = word.toUpperCase();
    }
}

module.exports.create = (userId, word) => {
    const newGame = new Game(nextId++, userId, word); 
    games.push(newGame);
    return newGame;
}

module.exports.get =
  (id) => games.find(game...
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