This does bring out another topic, when we need a call back? Any
rule ? In this case the function wii be replaced with a database one
later, so it might have some IO.
On Mar 10, 11:49 pm, Axel Kittenberger <axk...@gmail.com> wrote:
> If your user are not in a particular order, add to this: don't use an
> array if there is no order, but a hash (object).
>
> users = {};
>
> e.g. with adding a user by: users[id] = {|somenewuserdata|};
>
> In that case getting a new user is easy as:
>
> exports.get_user = function(id, func) {
> func(users[id] ? null : "NOT_FOUND", users[id] || null);
>
> }
>
> I wonder, why you need a callback after all? Its not an IO operation
> with a delay. If not needed due to overall structure or so, it gets
> even simpler:
>
> exports.get_user = function(id) {
> return users[id] || null;
>
>
>
>
>
>
>
> }
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