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Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Greasing the Skids: Building Remote Teams

In the wake of the virus that-must-not-be-named (which most people misname anyway), it seems like everyone and their cat has posted some sort of opinion or how-to on making remote work, work. This is a good thing! Working remotely, particularly full-time, is hard! I've done it for my entire career (aside from an odd 14 month office period in the middle that we shall not speak of), but more relevantly, for the past two years I've been responsible for building, managing, and enabling an entirely remote team, distributed across nine timezones. Remote teams don't just happen by installing Slack and telling everyone to work on their couch: they require a lot of effort to do correctly and efficiently. But, done right, it can be a massive multiplier on your team efficiency and flexibility.

Here's how we do it. I'm going to attempt to structure this post more towards management than engineering, and so I apologize in advance if I assume terminology or knowledge which

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	`${#VARNAME}`
Get a single character	`${VARNAME[index]}`

	#!/usr/bin/env bash
	#
	# Use google's date range and "verbatim" simultaneously
	# Paul Phillips <[email protected]>
	#

	NAME="$(basename "$0")"
	read -r -d '' USAGE << EOM
	usage: $NAME [-s days] [-e days] [search terms]

	import static com.fasterxml.jackson.annotation.JsonTypeInfo.As.EXISTING_PROPERTY;
	import static com.fasterxml.jackson.annotation.JsonTypeInfo.Id.NAME;
	import static jsinterop.annotations.JsPackage.GLOBAL;

	import com.fasterxml.jackson.annotation.JsonIgnore;
	import com.fasterxml.jackson.annotation.JsonSubTypes;
	import com.fasterxml.jackson.annotation.JsonTypeInfo;
	import com.fasterxml.jackson.annotation.JsonTypeName;
	import javax.annotation.Nullable;
	import jsinterop.annotations.JsOverlay;

	#! /bin/bash
	### BEGIN INIT INFO
	# Provides: dns-sync
	# Required-Start:
	# Required-Stop:
	# Default-Start: S
	# Default-Stop:
	# Short-Description: Synchronizes /etc/resolv.conf in WLS with Windows DNS - Matthias Brooks
	### END INIT INFO

	{
	"Key Mappings": {
	"0x2a-0x200000": {
	"Action": 12,
	"Text": "*"
	},
	"0x2b-0x200000": {
	"Action": 12,
	"Text": "+"
	},