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.
>
>
>
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