lololodash - 5 count the comments - bug

[marklagendijk]

In lololodash there is a bug in the 5th lesson. The following correct solution is not accepted:

// include the Lo-Dash library
var _ = require("lodash");

var worker = function(items){
    return _(items)
        .groupBy('username')
        .map(function(comments, username){
            return {
                username: username,
                comment_count: comments.length
            };
        })
        .sortBy(function(item){
            return item.comment_count * -1;
        })
        .value();
};

// export the worker function as a nodejs module
module.exports = worker;

The reason for this is that it expects the results to be sorted by comment_count, username, instead of just comment_count. So the following solution does work:

// include the Lo-Dash library
var _ = require("lodash");

var worker = function(items){
    return _(items)
        .groupBy('username')
        .map(function(comments, username){
            return {
                username: username,
                comment_count: comments.length
            };
        })
        .sortBy('username')
        .sortBy(function(item){
            return item.comment_count * -1;
        })
        .value();
};

// export the worker function as a nodejs module
module.exports = worker;

[finnp]

@mdunisch might help here :)

[mdunisch]

@marklagendijk

Thank you for that - you don't have to sort them by username. But you code make a different order to the last elements with the same count. I updated the exercise - so your first function would pass.

Just update lololodash with $> sudo npm install lololodash -g

[sudodoki]

Considering this one closed. 🎉