denitram

#--- Commandline history substitution

* Replace old by new in prevous command
^old^new
^old^new is equivalent to !!:s/old/new

* Replace globally
!!:gs/old/new

#--- Batch renaming file

Raisi

/**
 * Coordinates Transformations
 *
 * http://stackoverflow.com/questions/5736398/how-to-calculate-the-svg-path-for-an-arc-of-a-circle
 *
 * @param centerX
 * @param centerY
 * @param radius
 * @param angleInDegrees
 * @returns {string}

cevherkarakoc

function cartesianToPolar(x,y){
    return {
        radius: Math.sqrt( Math.pow(x, 2) + Math.pow(y, 2) ),
        alpha: Math.atan2(y, x)
    }
}

cevherkarakoc

function polarToCartesian(radius,radian){
    return {
        x:radius*Math.cos(radian),
        y:radius*Math.sin(radian)
    }
}

davidperezgar

zip -d archive.zip "*/*.DS_Store"

StephenPunwasi

zip -r [filename.zip] [foldername] -x "*.DS_Store" -x *.git*

yakovsh

#!/bin/sh
#
# Here is the software that is needed for the conversion to take place:
# 1. DjVuLibre .
# 2. LibTiff .
# 
# NOTE: The ddjvu utility has an option to convert specific layers. One common mistake is to convert only the mask layer
# or the foreground layer . Technically speaking, the mask layer is the one that should have the actual text but in
# practice I have seen that the the DjVu encoder occasionally puts portions of the text in the background layer. Thus,
# if you only take the foreground or mask layers, you will lose those bits in the background. If your specific files

dardo82

#!/bin/zsh
#mkicns.sh

FN=${1##*/}
DN=${1%/**}
BN=${FN%.*}

IS=iconset
ID=$BN.$IS

stefanschmidt

# depends on djvulibre and graphicsmagick compiled with libtiff support (available via Homebrew)
ddjvu -format=tiff doc.djvu img.tiff
gm convert img.tiff +adjoin img%03d.png

andrewwoods

Source URL http://www.sitepoint.com/simple-inheritance-javascript/
This article makes inheritance in OOP easy to understand. 

It did get me thinking. In the article above, the author uses 

	var inheritsFrom = function (child, parent) {
	    child.prototype = Object.create(parent.prototype);
	};