Hi I am creating a money lend tracking website using meteor. It is my first attempt to learn meteor js. I tried writing the following piece of code in my js file

var lists = new Meteor.Collection("Lists");

But when I go back in Chrome developer console after refreshing page and type

lists
ReferenceError: lists is not defined
get stack: function () { [native code] }
message: "lists is not defined"
set stack: function () { [native code] }
__proto__: Error

Is there something i am missing ? Could any one help me.

Hi I am creating a money lend tracking website using meteor. It is my first attempt to learn meteor js. I tried writing the following piece of code in my js file

var lists = new Meteor.Collection("Lists");

But when I go back in Chrome developer console after refreshing page and type

lists
ReferenceError: lists is not defined
get stack: function () { [native code] }
message: "lists is not defined"
set stack: function () { [native code] }
__proto__: Error

Is there something i am missing ? Could any one help me.

• javascript
• meteor

Share Improve this question Follow edited Apr 14, 2013 at 4:14 mu is too short 435k7171 gold badges859859 silver badges818818 bronze badges asked Apr 14, 2013 at 4:03 sreeprasadsreeprasad 3,26033 gold badges2929 silver badges3434 bronze badges 2

• 3 Why are you refreshing the page? And where is this line of code found? You just said "in my js file". Is it in the global scope? Otherwise lists isn't globally available – Ian Commented Apr 14, 2013 at 4:08
• i have added this line as the first line in lendLibrary.js file. – sreeprasad Commented Apr 14, 2013 at 4:11

Add a ment  | 

3 Answers 3

Sorted by: Reset to default 6

You can't access lists from your web console because code is scoped with each file. In meteor your code would be run as

function() {
    var lists = new Meteor.Collection("Lists");
    ....
}

So to access your collection in the console you need to globally scope it by changing your line to:

lists = new Meteor.Collection("Lists");

So that lists can be used anywhere such as other files and the webkit console

Those using the book, "Getting Started with meteor.js", from which this example originates.... are instructed by the author to use the var keyword before "lists", thereby local scoping that variable and causing the mismatch between what the book says you should see and what you actually see in a browser console. This is a mistake in the book and I have been unable to find any online errata for the book.

From the book "Getting Started with Meteor.js JavaScript"

Errata type: Code| Page number: Chapter 2. Reactive Programming… It's Alive!, | Errata date: 18-4-2013

In the example:

var lists = new Meteor.Collection("Lists");

should read instead

lists = new Meteor.Collection("Lists");

The reason is that "...Meteor 0.6 has added file-level JavaScript variable
scoping. Variables declared with var at the outermost level of a JavaScript
source file are now private to that file. Remove the var to share a value
between files."