Javascript / node.js - returning the value to parent function

Question

as a node.js newbie, I'm having problems to understand how to return value of nested function. I'm trying to make a function that retrieve data from DB and returns it. Here is my code:

getRecent: function() {

    var promise = models.download.find({}).sort({date_added: -1}).limit(5).exec();

    promise.then(function(data) {
        return data;
    });

}

My goal is to get the function getRecent() return the data from mongo. My initial ideas were:

make variable for the data, assing the data in the promise function and then return the variable

make something like this:

var test = promise.then(function(data) {
    return data;
});
return test;

But since node.js code works asynchronously, it wouldn't work. I believe some synchronous libraries might help, but what's the proper and elegant way to do it?

Thank you,

Tom

suvroc · Accepted Answer · 2015-07-06 13:36:46Z

1

You can just return promise and operate on this value out of the function

getRecent: function() {
    return models.download.find({}).sort({date_added: -1}).limit(5).exec();
}

getRecent().then(function(data) {
    // do something with data
});

answered Jul 6, 2015 at 13:36

suvroc

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