RJ Zaworski rjz

Performance Antipatterns - Ben Evans ([@kittylyst][kittylyst]), New Relic

a model or design used as a guide in needlework and other crafts

-- OED

A model or design: patterns are more abstract than the substrate you're applying them to. Software's pretty abstract already, but design patterns are

Lightning talks from the @pdxreactjs meetup on 2019-02-12.

Daniel Lemay - @dslemay

PDXReactJS meetup / 13. Nov 2018 @benjamminj

We want to make complex problems simple, and solve them in ways we can extend on.

JavaScript v. ReasonML:

	/** `x/crypto` if running in `deno` */
	import { createHmac } from 'node:crypto'

	/** A signing secret */
	const HMAC_SECRET = '<YOUR SIGNING SECRET HERE>'

	/** Length of a hexidecimal HMAC digest */
	const HMAC_LENGTH = 64

	function hmac(message: string): string {

	/**
	* Represents an error when an unreachable variant is encountered at runtime
	*/
	export class ExhaustiveCheckError<T> extends TypeError {
	public instance: T;

	public readonly isUnexpected = true;

	constructor(msg: string, instance: T) {
	super(msg);

	#!/bin/bash

	# Brute force search for TypeScript files in the current directory that fail
	# the `--strictNullChecks` flag. YMMV.

	# edit this function to exclude files that _shouldn't_ be checked.
	filter_defs() {
	grep -v node_modules \
	\| grep -v '.d.ts$' \
	\| sort \

	#! /bin/bash
	#
	# Translates an existing AWS Route53 zone into Terraform `aws_route53_record` resources.
	#
	# Released under the MIT license; YMMV. Tested on Linux with:
	#
	# - jq-1.6
	# - terraform v0.12.26
	# - aws-cli/1.17.14
	#

	#!/bin/bash

	# Returns a list of strict null-checked files inside the current directory.
	# Useful for gradually introducing the `--strictNullCheck` flag to a
	# TypeScript project.
	#
	# See: https://code.visualstudio.com/blogs/2019/05/23/strict-null

	TS_FLAGS='--strictNullChecks --outDir=/dev/null'

	#! /bin/bash
	#
	# Use `psutils` to convert a PDF into a printable booklet.
	#
	# Usage:
	#
	# $ ./pdf_to_booklet.sh my_file.pdf
	#
	# Distributed under terms of the MIT license.