minhoryang

The Rules of React

All libraries have subtle rules that you have to follow for them to work well. Often these are implied and undocumented rules that you have to learn as you go. This is an attempt to document the rules of React renders. Ideally a type system could enforce it.

What Functions Are "Pure"?

A number of methods in React are assumed to be "pure".

On classes that's the constructor, getDerivedStateFromProps, shouldComponentUpdate and render.

minhoryang

vCenter Server 8 Standard

Key	Tested
4F282-0MLD2-M8869-T89G0-CF240	✅
0F41K-0MJ4H-M88U1-0C3N0-0A214	✅

ESXi 8

Key	Tested
4V492-44210-48830-931GK-2PRJ4	✅

minhoryang

vSphere 6 Enterprise Plus:
1C20K-4Z214-H84U1-T92EP-92838
1A2JU-DEH12-48460-CT956-AC84D
MC28R-4L006-484D1-VV8NK-C7R58
5C6TK-4C39J-48E00-PH0XH-828Q4
4A4X0-69HE3-M8548-6L1QK-1Y240

vSphere with Operations Management 6 Enterprise:
4Y2NU-4Z301-085C8-M18EP-2K8M8
1Y48R-0EJEK-084R0-GK9XM-23R52

minhoryang

#!/usr/bin/python3
import time
import os
from watchdog.observers import Observer
from watchdog.events import *

CMD_MOUNT = "modprobe g_mass_storage file=/piusb.bin stall=0 ro=1"
CMD_UNMOUNT = "modprobe -r g_mass_storage"
CMD_SYNC = "sync"

minhoryang

#!/usr/bin/env bash
{ set +x; } 2>/dev/null

IFS=$'\n'
set "$@" $(find ~ -name ".*" ! -name ".CFUserTextEncoding" ! -type l -mindepth 1 -maxdepth 1) # dotfiles
set "$@" $(find ~ -name "Google *" -mindepth 1 -maxdepth 1) # Google Drive
set "$@" ~/git # store on github/etc :)
set "$@" ~/node_modules

set "$@" ~/Applications # install apps with brew cask

minhoryang

#!/bin/bash
import -window  $(xwininfo | grep -Po 'Window id: .*? ' | grep -Po '0x.* ') screenshot.jpg

minhoryang

{"lastUpload":"2017-08-10T11:51:57.295Z","extensionVersion":"v2.8.2"}

minhoryang

#!/bin/bash

machine=$(python -c "import uuid;print(uuid.uuid4())")

# NEEDED: AmazonEC2FullAccess, AmazonEC2SpotFleetRole
AWS_ACCESS_KEY_ID=$(aws configure get aws_access_key_id)
AWS_DEFAULT_REGION=$(aws configure get region)
AWS_SECRET_ACCESS_KEY=$(aws configure get aws_secret_access_key)
VPC=$(aws ec2 describe-vpcs | jq -r '.Vpcs[0].VpcId')

minhoryang

global
	maxconn			2000
	stats socket /tmp/haproxy.socket level admin
	uid			80
	gid			80
	nbproc			1
	chroot			/tmp/haproxy_chroot
	daemon
	tune.ssl.default-dh-param	2048
	# Modern browser compatibility only as mentioned here:

minhoryang

// clang -cc1 -analyzer-checker-help
// OVERVIEW: Clang Static Analyzer Checkers List
// USAGE: -analyzer-checker <CHECKER or PACKAGE,...>
// 
// CHECKERS:
//   alpha.core.BoolAssignment       Warn about assigning non-{0,1} values to Boolean variables
//   alpha.core.CallAndMessageUnInitRefArg
//                                   Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers, and pointer to undefined variables)
//   alpha.core.CastSize             Check when casting a malloc'ed type T, whether the size is a multiple of the size of T
//   alpha.core.CastToStruct         Check for cast from non-struct pointer to struct pointer