IPRIT

function duckCount() {
    return Array.prototype.slice.call(arguments).filter(function(obj) {
        return Object.prototype.hasOwnProperty.call(obj, 'quack')
    }).length
}

module.exports = duckCount;

IPRIT

function reduce(arr, fn, prev) {
    prev = prev || {};
    if (!arr.length) {
        return prev;
    }
    var cur = fn(prev, arr.shift());
    return reduce(arr, fn, cur);
}

module.exports = reduce;

IPRIT

var util = require('util');

function countWords(inputWords) {
    return inputWords.reduce(function (prev, cur) {
        prev[cur] = ++prev[cur] || 1;
        return prev;
    }, {});
}

module.exports = countWords;

IPRIT

var util = require('util');

function countWords(inputWords) {
    return inputWords.reduce(function (prev, cur) {
        if (!util.isObject(prev)) {
            var obj = {};
            obj[prev] = 1;
            obj[cur] = 1;
            return obj;
        }

IPRIT

function checkUsersValid(goodUsers) {
    return function(submittedUsers) {
        return submittedUsers.every(function(el) {
            var cur_id = el.id;
            return goodUsers.some(function(el) {
                return el.id === cur_id;
            });
        });
    };
}

IPRIT

var args = process.argv.slice(2);
var http = require('http');
var url = require('url');

var server = http.createServer(function(req, res) {
    if (req.method != 'GET') {
        res.end("Allows to use only GET HTTP request");
        return;
    }
    var parsedUrl = url.parse(req.url, true),

IPRIT

var args = process.argv.slice(2);
var http = require('http');
var url = require('url');

var server = http.createServer(function(req, res) {
    if (req.method != 'GET') {
        res.end("Alows to use only GET HTTP request");
        return;
    }
    var parsedUrl = url.parse(req.url, true),

IPRIT

var args = process.argv.slice(2);
var http = require('http');
var map = require('through2-map');

var server = http.createServer(function(req, res) {
    req.pipe(map(function(chunk) {
        return chunk.toString().toUpperCase();
    })).pipe(res);
    //console.log(req.pipe);
});

IPRIT

var args = process.argv.slice(2);
var net = require('net');
var strftime = require('strftime');

net.createServer(function(socket) {
    socket.end(strftime('%F %R') + '\n');
}).listen(+args[0]);

IPRIT

var args = process.argv.slice(2);
var httpPipe = require('./http_pipe');

var queue = [], cur;

var httpGet = function(url) {
    function callback(err, data) {
        if (err) throw err;
        console.log(data);
        if (queue.length) {