vhf

defmodule SecureSandbox do
  @forbidden_modules [File, System, Code, Process, :erlang]
  @forbidden_functions [:eval, :apply, :spawn, :send, :exit]

  def new do
    Agent.start_link(fn -> %{binding: [], env: __ENV__} end)
  end

  def eval(pid, code) do
    Agent.get_and_update(pid, fn state ->

vhf

state

SELECT
  queue,
  count(1) FILTER (WHERE state = 'available'),
  count(1) FILTER (WHERE state IS NULL OR state != 'available')
FROM oban_jobs
GROUP BY queue;

vhf

Oban.Job
|> where([j], j.completed_at > ago(5, "minute"))
|> select([j], fragment("EXTRACT(epoch FROM avg(? - ?))::int", j.completed_at, j.attempted_at))
|> Repo.one()

vhf

iex([email protected])29> Node.list |> Enum.map(fn node -> Enum.map(1..100, fn _ -> {us, :pong} = :timer.tc(Node, :ping, [node])
...([email protected])29> us/2 end)|> Enum.reduce(fn x, sum -> sum + x end) end) |> Enum.map(fn x -> x / 100 end)
[413.585, 436.995]

vhf

import chess
import chess.pgn
import chess.engine
from chess import BLACK, WHITE

engine = chess.engine.SimpleEngine.popen_uci("./stockfish_20090216_x64_avx2")

import bz2
path = "lichess_db_standard_rated_2017-04.pgn.bz2"
f = bz2.open(path, "rt", encoding="ascii")

vhf

defmodule Foo do
  def bar(first_day, second_day) do
    days_between = Date.diff(second_day, first_day) + 1
    dow1 = Date.day_of_week(second_day)
    dow2 = Date.day_of_week(second_day)

    weekend_days =
      Kernel.floor((days_between + dow2) / 7 * 2) +
        if(dow1 == 7, do: 1, else: 0) - if(dow2 == 6, do: 1, else: 0)

vhf

// complete list of camelCase attributes
// https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute
const camelAttributes = [
  'allowReorder', 'attributeName', 'attributeType', 'autoReverse',
  'baseFrequency', 'baseProfile', 'calcMode', 'clipPathUnits', 'contentScriptType',
  'contentStyleType', 'diffuseConstant', 'edgeMode', 'externalResourcesRequired',
  'filterRes', 'filterUnits', 'glyphRef', 'gradientTransform', 'gradientUnits',
  'kernelMatrix', 'kernelUnitLength', 'keyPoints', 'keySplines', 'keyTimes', 'lengthAdjust',
  'limitingConeAngle', 'markerHeight', 'markerUnits', 'markerWidth', 'maskContentUnits',
  'maskUnits', 'numOctaves', 'pathLength', 'patternContentUnits', 'patternTransform',

vhf

vhf

const fixNewLine = require('./index.js')
const remark  = require('remark')

text = "lol\nlol\n```\nlol\nlol\n```\n> lol\n> lol"

processed = remark()
  .use(fixNewLine)
  .processSync(text)

console.log(processed)

vhf