vorandrew

/*
  PutCallFlag: Either "put" or "call"
  S: Stock Price
  X: Strike Price
  T: Time to expiration (in years)
  r: Risk-free rate
  v: Volatility

  This is the same one found in http://www.espenhaug.com/black_scholes.html
  but written with proper indentation and a === instead of == because it's

vorandrew

---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my 
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description: 
#   Ensures that a host is configured for management with Ansible.

vorandrew

Promise = require 'bluebird'
co = require 'co'

# Callbacks

wait = (n, cb) ->
  setTimeout ->
    cb null, n
  , 1000

vorandrew

// Promise.all is good for executing many promises at once
Promise.all([
  promise1,
  promise2
]);

// Promise.resolve is good for wrapping synchronous code
Promise.resolve().then(function () {
  if (somethingIsNotRight()) {
    throw new Error("I will be rejected asynchronously!");

vorandrew

package main

func main() {
        var c chan string
        c <- "let's get started" // deadlock
        <-c // deadlock
        c := make(chan string)
        close(c)
        c <- "let's get started" // panic
        val, open := <-c // val = zero, open = false

vorandrew

yield Promise.map data, (oneEvent)->
  eventModel = new Event oneEvent

  eventModel.fetch().then (fromDB) ->
    return do eventModel.save if not fromDB?
    fromDB.save oneEvent

vorandrew

$ node index.js
[-isodate-]    INFO    init    start
[-isodate-]    INFO    init    end
123

vorandrew

#!/bin/sh
set -e
#  Code generated by godownloader. DO NOT EDIT.
#

usage() {
  this=$1
  cat <<EOF
$this: download go binaries for apex/up

vorandrew

let data = _.flow(
  _.groupBy('country_id'),
  _.map(
    _.flow( // city group by level
      _.groupBy('city_id'),
      _.map(
        _.flow(   // person group by level
          _.groupBy('person_id'),
          _.map(vals => {
            return {

vorandrew

function MakeArray(size) {

    for (var i = 1; i <= size; i++) {
        this.length = size;
        this[i] = 0;
    }

}

/*