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def missing_number num_array:
	n = num_array.length + 1
	expected = n * (n + 1) / 2
	actual = num_array.reduce :+
	missing = expected - actual
	
	return missing
end

zh4ngx

Log onto bad mongo primary
Use mongotop to find bad database
Run this to find long running queries
    db.currentOp()['inprog'].filter(function (t){return t.secs_running > 10}).map(function (t){return t.opid})
Kill bad ops with
    db.killOp(<opid>)

zh4ngx

$stack, $draws = [], {}

def method_missing *args
  return if args[0][/^to_/]
  $stack << args.map { |a| a or $stack.pop }
  $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end

class Array
  def +@

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.river-pics
	= profile_image_for current_user
	%p #{current_user.first_name}, #{current_user.age}
	.blurb
		%p
#content
	%h1 Satisfied?
	%p Hover your mouse over your picture.
	%p This is how others will see you.

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  gg_replace() {
    if [[ "$#" == "0" ]]; then
      echo 'Usage:'
      echo '  gg_replace term replacement file_mask'
      echo
      echo 'Example:'
      echo '  gg_replace cappuchino cappuccino *.html'
      echo
    else
      find=$1; shift