andyrbell

# use ImageMagick convert
# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf

levelsio

<?
	//
	// [ BUY BTC & ETH DAILY ON BITSTAMP ]
	// by @levelsio
	//
	// 2017-08-23
	//
	// 1) buy $40/day BTC
	// 2) buy $10/day ETH
	//

addyosmani

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

koenbok

Learn CoffeeScript in an afternoon. Or use it as a cheat sheet.

########################################################################

Part 1: Variables

A variable is a way to store something under a name. It's pretty simple:

myVariable = 1

From this point on the variable myVariable contains 1. You can change this at any point just by assigning a new value. If you ask the value of a variable before it has one (defined) it returns a special value 'undefined'.

koenbok

var QcValueConverter = {
  tensionFromQcValue: function(qcValue) {
    return (qcValue - 30.0) * 3.62 + 194.0;
  },

  qcValueFromTension: function(tension) {
    return (tension - 194.0) / 3.62 + 30.0;
  },

  frictionFromQcValue: function(qcValue) {