Gregory Kremler gregorykremler

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!

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Frontend Development

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vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

Launch Sublime Text 2 from the Mac OS X Terminal

Sublime Text 2 ships with a CLI called subl (why not "sublime", go figure). This utility is hidden in the following folder (assuming you installed Sublime in /Applications like normal folk. If this following line opens Sublime Text for you, then bingo, you're ready.

open /Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl

You can find more (official) details about subl here: http://www.sublimetext.com/docs/2/osx_command_line.html

	Question: Convert following into the latter data structure in less than 30 lines:

	List:
	A, B, C
	A, C, E
	E, F, D
	D, A, J
	E, D, J

	List

	#!/usr/bin/env python

	from collections import OrderedDict
	import json

	write_data = OrderedDict([
	('a', '1'),
	('b', '2'),
	('c', '3')
	])

	# The blog post that started it all: https://neocities.org/blog/the-fcc-is-now-rate-limited
	#
	# Current known FCC address ranges:
	# https://news.ycombinator.com/item?id=7716915
	#
	# Confirm/locate FCC IP ranges with this: http://whois.arin.net/rest/net/NET-165-135-0-0-1/pft
	#
	# In your nginx.conf:

	location / {

	### Locating UI elements ###

	# By ID
	<div id="coolestWidgetEvah">...</div>
	element = driver.find_element_by_id("coolestWidgetEvah")
	or
	from selenium.webdriver.common.by import By
	element = driver.find_element(by=By.ID, value="coolestWidgetEvah")

	# By class name: