avoronkin

function waterfall (fns = []) {
    return async (...args) => {
        return fns.reduce((p, fn) => p.then(args => fn.apply(this, args)), Promise.resolve.call(this, args))
    }
}

luckydev

# maximum capability of system
user@ubuntu:~$ cat /proc/sys/fs/file-max
708444

# available limit
user@ubuntu:~$ ulimit -n
1024

# To increase the available limit to say 200000
user@ubuntu:~$ sudo vim /etc/sysctl.conf

malko

const enchainProxifier = (target, promise = Promise.resolve()) => {
	return new Proxy(target, {
		get(target, propName) {
			if (propName === 'promise') {
				return promise;
			} else if (propName === 'then') {
				return (...args) => promise.then(...args);
			}
			if (target[propName] instanceof Function) {
				return (...args) => enchainProxifier(target, promise.then(() => target[propName](...args)));

Yimiprod

/**
 * This code is licensed under the terms of the MIT license
 *
 * Deep diff between two object, using lodash
 * @param  {Object} object Object compared
 * @param  {Object} base   Object to compare with
 * @return {Object}        Return a new object who represent the diff
 */
function difference(object, base) {
	function changes(object, base) {

maxvyaznikov

var raw = require("raw-socket");
var ip = require('ip');
var util = require('util');


function send(src_ip, src_port, dst_ip, dst_port) {
    var socket = raw.createSocket({
        protocol: raw.Protocol.TCP, // See http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
        addressFamily: raw.AddressFamily.IPv4
    });

cvan

class FrameMessenger {
  constructor(name) {
    this._listeners = {};

    this.name = name || 'frame';
    this.bc = new BroadcastChannel(this.name);

    this.bc.addEventListener('message', e => {
      if (e.data && typeof e.data === 'object' && e.data.type) {
        this.emit(e.data.type, e.data.data);

yunano

[Unit]
Description=consul-template
Requires=network-online.target
After=network-online.target consul.service vault.service

[Service]
EnvironmentFile=-/etc/sysconfig/consul-template
Restart=on-failure
ExecStart=/usr/local/sbin/consul-template $OPTIONS -config=/etc/consul-template.d

paulirish

/* bling.js */

window.$ = document.querySelectorAll.bind(document);

Node.prototype.on = window.on = function (name, fn) {
  this.addEventListener(name, fn);
}

NodeList.prototype.__proto__ = Array.prototype;

lislon

module.exports = {
    /**
     * Recipients of notificaton about new loan registered on website.
     * Subject is parsed by jade
     */
    'success-order-loan': {
        from: 'boria1966@gmail.com',
        to: 'boria1966@gmail.com',
        subject: '| Новая заявка на заем #{id}, #{city}'
    }

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.