I tried this and everything looks better. The class should only be 
instantiated once from server.js.  I think my main problem is I don't know 
how to make a method to return the value! Please help! 

On Thursday, March 27, 2014 5:05:17 AM UTC-5, ryandesign wrote:
>
>
> On Mar 27, 2014, at 04:53, fm3391 <[email protected] <javascript:>> wrote: 
>
> > contents of "sensor1_class.js" 
> > 
> > var Sensor1 = function(){ 
> >         this.distance = 0; 
> >          
> >         getDistance: function (){ 
> >                 return distance; 
> >         } 
> > 
> > }; 
> > 
> > module.exports = Sensor1; 
> > 
> > 
> > 
> > 
> > partial contents of "server.js" 
> > 
> > var sensor1 = require('./sensor1_class'); 
> > 
> > console.log(sensor1.getDistance()); <--- Here is where I am having the 
> trouble, I just want to call a method of object "Sensor1" that returns the 
> property “distance" 
>
> You have exported the class constructor function; you haven’t called the 
> function anywhere to instantiate it. 
>
> If your intention is that multiple objects could be created, then you’ve 
> exported the right thing, and you need to call that function when you 
> require it, e.g.: 
>
>
> var sensor1_class = require('./sensor1_class’); 
> var sensor1 = sensor1_class(); 
>
>
> Alternately, if it is your intention that there be a single instance of 
> this object that every other file that requires the class shares, then you 
> should instantiate the object in sensor1_class.js and return that instance: 
>
>
> module.exports = Sensor1(); 
>
>
>

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