kddnewton

# frozen_string_literal: true

require "bundler/inline"

gemfile do
  source "https://rubygems.org"
  gem "json_pure"
  gem "benchmark-ips"
end

mmazzarolo

/**
 * GlobalsDebugger
 *
 * Inspect the stack when a global variable is being set on the window object.
 * Given a global variable name, it proxies the variable name in the window
 * object adding some custom code that will be invoked whenever the variable
 * is set. The custom code will log the current stack trace and halt the code
 * execution to allow inspecting the stack and context in your browser DevTools.
 * You can use the "globalsToInspect" query-parameter to set a comma-separated
 * list of names of the variables you want to inspect.

rauschma

Cheat sheet: modules

Named exports, named imports, namespace imports

If we put export in front of a named entity inside a module, it becomes a named export of that module. All other entities are private to the module.

//===== lib1.mjs =====
// Named exports

Kukunin

require 'benchmark'
require 'etc'

Ractor.new { :warmup } if defined?(Ractor)

def fibonacci(n)
  return n if (0..1).include? n

  fibonacci(n - 1) + fibonacci(n - 2)
end

swanson

# Add color coding based on Rails environment for safety

if defined? Rails
  banner = if Rails.env.production?
    "\e[41;97;1m #{Rails.env} \e[0m "
  else
    "\e[42;97;1m #{Rails.env} \e[0m "
  end

  # Build a custom prompt

rauschma

for-of, early termination, iterators, and generators

If we terminate a loop early, for-of invokes method .return() of the iterator. Generators return generator objects (that implement both the Iterable interface and the Iterator interface). If we invoke .return() on such an object, the generator is terminated. We can prevent that by overriding .return().

More information: https://exploringjs.com/es6/ch_iteration.html#sec_iteration-protocol-in-depth

Demonstration:

function logIter(iter) {

BoresXP

{
	"env": {
		"browser": true,
		"es6": true
	},
	"extends": [
		"eslint:recommended",
		"plugin:react/recommended",
		"plugin:promise/recommended",
		"plugin:sonarjs/recommended",

dmshvetsov

class Worker
  def self.start(num_threads:, queue_size:)
    queue = SizedQueue.new(queue_size)
    worker = new(num_threads: num_threads, queue: queue)
    worker.spawn_threads
    worker
  end

  def initialize(num_threads:, queue:)
    @num_threads = num_threads

ezhulkov

[server]
SERVER

[server:vars]
server_name=SERVER
email=noc@gopractice.io
docker_nginx_ssl=true

hartator

require 'digest'
require 'benchmark'

hash = {}

10_000_000.times do
  key = Digest::MD5.hexdigest(rand.to_s)
  value = Digest::MD5.hexdigest(rand.to_s)
  hash[key] = value
end