yeah that's right. You just need to add the line module.exports = mySingleton and in the caller file require as follows var singleton = require('./single').mySingleton
Hope that helps José On Nov 19, 2013, at 2:40 AM, Reza Razavipour <reza.razavip...@gmail.com> wrote: > Wonderful book, thank you. > > So reading the book, if I put the code for the mySingleton class into a file > on its own, call it single.js. > In my main.js, I add that with a require statement, such as var singleton = > require('./.single); > when I say, singleton.getInstance(), I get a compile error saying singleton > does not have a getInstance function... > > Do I have to add an export to the single.js file I created or what am I > missing... > > The code is as follows: > > var mySingleton = (function() { > > var instance; > > > > function init() { > > > > var privateRandomNumber = Math.random(); > > > > return { > > > > publicMethod : function() { > > > > console.log("The public can see me!"); > > > > }, > > > > publicProperty : "I am also public", > > > > getRandomNumber : function() { > > > > return privateRandomNumber; > > > > }, > > > > getInstance : function() { > > if (!instance) { > > > > instance = init(); > > > > } > > return instance; > > > > } > > }; > > }; > > return { > > getInstance : function() { > > > > if (!instance) { > > > > instance = init(); > > > > } > > return instance; > > } > > }; > > })(); > > > > > > Thanks for the help. > > Reza > > > > > On Monday, November 18, 2013 3:38:09 PM UTC-8, Reza Razavipour wrote: > A newbie question... > > I have an app that connects and reuses the same connection to a remote > database and a connection to a remote soap server. > I want to implement a singleton pattern for each of these. I am used to doing > that in C++ and Java but want to know what the standard > implementation for a Singleton pattern is in node.js. > > Any recommendations or references. > > > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to nodejs@googlegroups.com > To unsubscribe from this group, send email to > nodejs+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to nodejs+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to nodejs+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.