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class IndexedDBStorage {
  constructor(dbName = 'localStorageDB', storeName = 'localStorageStore') {
      this.dbName = dbName;
      this.storeName = storeName;
      this._init();
      this.cache = {};
  }

  _init() {
      const request = window.indexedDB.open(this.dbName, 1);

xnohat

// this is the background code...

// listen for our browerAction to be clicked
chrome.browserAction.onClicked.addListener(function (tab) {
	// for the current tab, inject the "inject.js" file & execute it
	chrome.tabs.executeScript(tab.ib, {
		file: 'inject.js'
	});
});

xnohat

# Setup QEMU for x86-64 Docker images on Raspberry Pi 4
# Install Python3 and Docker first: https://dev.to/rohansawant/installing-docker-and-docker-compose-on-the-raspberry-pi-in-5-simple-steps-3mgl

# Install QUEMU (https://www.qemu.org/)
sudo apt-get install qemu binfmt-support qemu-user-static

# Use QUS in Docker (https://github.com/dbhi/qus) to configure x86_64 architecture
docker run --rm --privileged aptman/qus -s -- -p x86_64

# Test x86-64 image:

xnohat

ghcr (GitHub Container Registry) quickstart

CLI

To push container images to ghcr, you need peronal access token (PAT) - see how to create PAT

1. Get PAT (personal access token)

Personal Settings > Developer settings > Personal access tokens

xnohat

FROM ubuntu
RUN apt-get update -y \
	&& apt-get install -y wget \
	&& wget -O netselect.deb http://http.us.debian.org/debian/pool/main/n/netselect/netselect_0.3.ds1-28+b1_`dpkg --print-architecture`.deb \
	&& dpkg -i netselect.deb \
	&& rm netselect.deb \
	&& sed -r -i -e "s#http://(archive|security)\.ubuntu\.com/ubuntu/?#$(netselect -v -s1 -t20 `wget -q -O- https://launchpad.net/ubuntu/+archivemirrors | grep -P -B8 "statusUP|statusSIX" | grep -o -P "http://[^\"]*"`|grep -P -o 'http://.+$')#g" /etc/apt/sources.list

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# Repo: someuser/myframework
# Fork: superteam/myframework

# Track:
git clone https://github.com/superteam/myframework.git
cd myframework
git remote add upstream https://github.com/someuser/myframework.git

# Update:
git fetch upstream

xnohat

function mySlowFunction(baseNumber) {
	console.time('mySlowFunction');
	let result = 0;	
	for (var i = Math.pow(baseNumber, 7); i >= 0; i--) {		
		result += Math.atan(i) * Math.tan(i);
	};
	console.timeEnd('mySlowFunction');
}

mySlowFunction(8); // higher number => more iterations => slower

xnohat

#accepts all arguments for ssh except command, -N and -f
#command can be piped in
Filter ssh-f {
	$N = $False
	if (!$_) {
		#the same as -N
		$_ = 'read'
		$N = $True
	}
	$_ = 'echo SUCCESS;' + $_

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Mount the remote volume through whatever means. Example, sshfs:

sshfs -o allow_other,defer_permissions,IdentityFile=~/.ssh/id_rsa <remote_user>@host:/path/to/mount /path/to/mount

Stop the machine and add the new shared folder to the VirtualBox config.

docker-machine stop 

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KEYMAPOPTS="us us"
HOSTNAMEOPTS="-n alpine"
INTERFACESOPTS="auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
    hostname alpine
"
TIMEZONEOPTS="-z UTC"