barsbek

def list_squared(m, n)
  divs_hash = {}
  (m..n).reduce([]) do |result, i|
    sum = 1
    divs = [1]
    for k in (2..i/2)
      if (i % k).zero?
        current = (i/k)
        if divs_hash.has_key?(current.to_s)
          divs_hash[current.to_s].each do |c|

barsbek

# windows 10 goes into hibernation on shutdown. Turn it off in battery settings to make disks C & D writable

dd if=/dev/sdX bs=4K status=progress| gzip -c  > /path/to/backup.img.gz

barsbek

$('.carousel').each(function () {
    var $carousel = $(this);
    var hammertime = new Hammer(this, {
        recognizers: [
            [Hammer.Swipe, { direction: Hammer.DIRECTION_HORIZONTAL }]
        ]
    });
    hammertime.on('swipeleft', function () {
        $carousel.carousel('next');
    });

barsbek

# regexp
# to create non-capturing group use:
(?:)
# (?:b) matches b without capturing it

barsbek

if( true ) {
  var ww = ( $(window).width() < window.screen.width ) ? $(window).width() : window.screen.width; //get proper width
  var mw = 1024;
  var ratio =  ww / mw;
  if( ww < mw){
   $('#viewport').attr('content', 'initial-scale=' + ratio + ', maximum-scale=' + ratio + ', minimum-scale=' + ratio + ', user-scalable=yes, width=' + ww);
  }else{
   $('#viewport').attr('content', 'initial-scale=1.0, maximum-scale=2, minimum-scale=1.0, user-scalable=yes, width=' + ww);
  }
}

barsbek

// run the command in windows cmd
wslconfig /s Ubuntu

// to show list of installed subsystems
wslconfig /l

barsbek

  const checkboxes = document.querySelectorAll('input[type="checkbox"]');
  checkboxes.forEach(c => c.addEventListener('click', handleCheck));

  let lastChecked = null;

  function handleCheck(e) {
    let inBetween = false;

    if(e.shiftKey && this !== lastChecked) {
      checkboxes.forEach(c => {

barsbek

psql.exe -U postgres -d balloon_development -f D:\temp\db.dump

barsbek

redis-server --daemonize yes

barsbek

ssh-keygen -E md5 -lf ~/.ssh/id_rsa.pub