I\'ve got a meteor collection on the client side
Friends = new Meteor.Collection(\"Friends\");
Meteor.subscribe(\"Friends\");
I have a user
If you want to use Collection only on Client side and you don't need to save that data to server you can declare your collection in "client" folder or in .isClient() function by passing null to the constructor like this:
if(Meteor.isClient()){
// Some other code
...
onlyClientCollection = new Meteor.Collection(null);
// Some other code
...
}