jbranchaud

• https://spectrum.chat/statecharts/general/when-to-use-react-state-and-when-to-use-xstate-context~e32d06e2-3389-4228-9fa9-e5df745871e6
• https://twitter.com/mpocock1/status/1345083512173555712
• https://twitter.com/tannerlinsley/status/1345085887026106368
• https://css-tricks.com/using-react-and-xstate-to-build-a-sign-in-form/
• In the wild! Where are you using XState
• Elm: How do we feel about state machines?
• [Things I wish I knew about state management when I started writing React apps](https://news.ycombinator.

jbranchaud

results = `git log HEAD@{'7 days ago'}..HEAD --oneline | sed 's/^\([[:alnum:]]*\) .*$/\1/'`

commit_list = results.split(/\n/).map do |item|
  item.split(' ', 2)
end.filter do |sha, commit_message|
  commit_message.start_with?('Add ')
end

commit_data = commit_list.map do |sha, commit_message|
  diff_tree_result = `git diff-tree --no-commit-id --name-only -r #{sha}`

jbranchaud

def sometimes_fails
  puts "Beginning of sometimes_fails"
  
  begin
    retries ||= 0
    puts "About to do a thing (#{retries})"

    raise StandardError if rand(5) != 4

    puts "Success!"

jbranchaud

class Thing
  def initialize(value)
    @value = value
  end

  def call(other_value)
    @other_value = other_value

    puts final_value
  end

jbranchaud

Congratulations! Josh Branchaud 🏆:

Check your terminal for next steps 👀

jbranchaud

-- create temp table with sample input
insert into xmas_data (value) values (35), (20), (15), (25), (47), (40), (62), (55), (65), (95), (102), (117), (150), (182), (127), (219), (299), (277), (309), (576);

-- starter subquery
select
  v1.id v1id,
  v2.id v2id,
  v1.value,
  v2.value,
  v1.value + v2.value sum

jbranchaud

/*
 * Keeping the postconditions of Abs the same as above, change
 * the body of Abs to just y := x + 2. What precondition do you
 * need to annotate the method with in order for the verification
 * to go through? What precondition doe you need if the body is
 * y := x + 1? What does that precondition say about when you can
 * call the method?
 */
method Abs(x: int) returns (y: int)
   requires x == -1;

jbranchaud

#!/bin/bash

# the first argument is the string you are looking for --> $1
searchString="$1"

for f in `find . -type f -name "*.java"`
do

    result=`grep "$searchString" $f`

jbranchaud

# Convert a CSV like the following:
# a,b,c,d,e,f,g
# To the LaTeX table format like the following:
# {a} & {b} & {c} & {d} & {e} & {f} & {g} \\\hline

sed 's/,/} \& {/g' Table1.csv | sed 's/^/{/' | sed 's/$/} \\\\\\hline/' > Table1Format.txt

jbranchaud

package main

import "golang.org/x/tour/pic"

func Pic(dx, dy int) [][]uint8 {
	var picArray [][]uint8
	picArray = make([][]uint8, 0, dy)
	for i := 0; i < dy; i++ {
		var currX []uint8
		currX = make([]uint8, 0, dx)