rjz

What's so great about Reason?

PDXReactJS meetup / 13. Nov 2018 @benjamminj

Maintainability?

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

JavaScript v. ReasonML:

rjz

#!/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 \

rjz

APIs: the good, the bad, and the ugly

• Michele Titolo @micheletitolo
• Who's built, designed, and spec'd a lot of APIs
• Talk will focus on web APIs, but applies to many programmatic APIs, too

Documentation

• good: it exists (and bonus points if it's interactive: I/O Docs is one nice example)

rjz

#! /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
#

rjz

# A class-based template for jQuery plugins in Coffeescript
#
#     $('.target').myPlugin({ paramA: 'not-foo' });
#     $('.target').myPlugin('myMethod', 'Hello, world');
#
# Check out Alan Hogan's original jQuery plugin template:
# https://github.com/alanhogan/Coffeescript-jQuery-Plugin-Template
#
(($, window) ->

rjz

#!/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'

rjz

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

First, what's a pattern?

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

rjz

// Redux actions using TypeScript discriminated unions
//
// Source: https://github.com/rjz/typescript-react-redux/

// Actions
export type Action =
   { type: 'INCREMENT_COUNTER', delta: number }
|  { type: 'RESET_COUNTER' }

rjz

PDXReactJS Lightning Talks

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

---

A Better Approach to React Testing

Daniel Lemay - @dslemay

rjz

# Nothin' special here: just Resig's pretty date function ported to Ruby
# http://ejohn.org/blog/javascript-pretty-date/

def pretty_date(stamp)
	now = Time.new
	diff = now - stamp
	day_diff = ((now - stamp) / 86400).floor

	day_diff == 0 && (
		diff < 60 && "just now" ||