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function re (node, prevNode) {
  node.next = prevNode.id
  const prePreNode = findPrev(prePreNode)
  if (prePreNode === null) {
    prevNode.next = null
  } else {
    re(prevNode, prePreNode)
  }
}

wkei

Sans-serif

-apple-system,		/* ios/mac */
BlinkMacSystemFont,	/* ios/mac */
"Segoe UI",			/* win */
Noto,					/* android */
Roboto,				/* android */
Oxygen-Sans,			/* linux */
Ubuntu,				/* linux */
Cantarell, /* linux */

wkei

Find running puma

ps aux | grep puma

Find running port

lsof -i :3000

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{
  "scripts": {
    "start": "node scripts/start.js",
    "dev": "NODE_ENV=development SERVER_ENV=development nodemon --exec 'babel-node' server/index.js",
    "pre": "npm install -g npm-run-all pm2",
    "build:install": "npm install",
    "build:client": "node scripts/build.js",
    "build:server": "babel server -d build-server",
    "build:serverassets": "NODE_ENV=production webpack --config ./config/webpack.server.assets.config.js",
    "serve": "node build-server/index",

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export SERVER_USER=xxyy
export SERVER_IP=xxx.yyy.xxx.yyy
export PROJECT_PATH=/home/user/xxyy
export PORT=4321

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has to type javascript: manually... (

copy to pc browser's address bar

javascript:f=function(){x=window.innerWidth*Math.random();y=window.innerWidth*Math.random();$('canvas').trigger(jQuery.Event("mousedown",{clientX:x,clientY:y})).trigger(jQuery.Event("mouseup", {clientX:x,clientY:y}))};setInterval(f,1500*Math.random());setInterval(f,1500*Math.random())

copy to mobile browser's address bar (a little bit difficult...

wkei

Things to do after installing Ubuntu server

Thanks to https://imtx.me/archives/2375.html

Tips about byobu https://askubuntu.com/a/700641

Node.js

curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -

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Things to do after installing macOS

System Preferences:

• Tap to click
• Disable smart quotes
• Use three finger to drag&drop

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execute pathogen#infect()

set nocompatible
filetype off
filetype plugin indent on

" color

syntax on
set nu

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# Git branch in prompt.
parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\W\[\033[32m\]\$(parse_git_branch)\[\033[00m\] $ "

# nvm
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm