sarahbkim sarahbkim

Promises, under the hood

You all know that to create a new Promise you need to define it this way:

  new Promise((resolve, reject) => {
    ...
    resolve(someValue)
  })

You are passing a callback that defines the specific behavior of your promise.

Picking the right architecture = Picking the right battles + Managing trade-offs

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

2015-10-21

Open a browser

# start an instance of firefox with selenium-webdriver
driver = Selenium::WebDriver.for :firefox
# :chrome -> chrome
# :ie     -> iexplore

	import unittest

	def has_pair_with_sum(a_list, target):
	if len(a_list) < 2:
	return False

	i, j = 0, len(a_list) - 1

	while i < j:
	min_value = a_list[i]

	" Section: General Config {{{1
	" ----------------------------
	set shell=zsh " Set bash as the prompt for Vim
	set backspace=2 " Backspace deletes like most programs in insert mode
	set ruler " show the cursor position all the time
	set laststatus=2 " Always display the status line
	set shiftround
	set scrolloff=3
	set list listchars=tab:»·,trail:· " Display extra whitespace characters
	set hidden


	const schema = [
	{ klass: 'Places', validvalues: [ 'Chain', 'Category' ], validOperators: [ '$and', '$or' ] },
	{ klass: 'Chain', validvalues: [], validOperators: ['$in', '$nin'] },
	{ klass: 'Category', validvalues: [], validOperators: ['$in', '$nin'] }
	]

	function generateSubqueries(klass, validvalues) {
	validvalues.forEach((subquery) => {
	klass.prototype[`add${subquery}`] = function(operator, value) {

	// custom implementation of reduce fn just for fun
	Array.prototype.myReduce = function(fn, customStart) {
	var result = customStart ? customStart : null;

	for(var i=0;i<this.length;i++) {
	result = fn(result, this[i])
	}
	return result
	};

	# set date variables
	TODAY=`date --date= +%Y-%m-%d`

	FIRST_DAY_PREVIOUS_MONTH=`date --date="-1 month" +%Y-%m-01`
	LAST_DAY_PREVIOUS_MONTH=`date -d "-$(date +%d) days" +%Y-%m-%d`

	#get english month
	ENGLISH_MONTH=`date "+%B"`

	# Get today's quarter and year

	FROM factual/docker-cdh5-swissarmy:latest
	RUN apt-get -y update
	CMD curl -XPOST "http://admin.prod.factual.com/geopulse/send_stale_designs"