chirag64

# 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

chirag64

import numpy as np
import pandas as pd

#### creating dataframes, adding and dropping columns

df = pd.DataFrame(np.arange(1,10).reshape(3,3),['A','B','C'],['w','x','y'])
df.columns = ['W','X','Y'] # change column names
df['Z']=df['X']+df['Y'] # new column with values X+Y
df['XX']=df.apply(lambda row: row['X']*2, axis=1) # new column with values twice of column X
df['YY']=1 # new column of ones

chirag64

/*
* @description: A code snippet that mimics the popular Select * SQL syntax in force.com's Apex language.
*/

// Initialize setup variables
String objectName = 'Contact';  // modify as needed
String query = 'SELECT';
Map<String, Schema.SObjectField> objectFields = Schema.getGlobalDescribe().get(objectName).getDescribe().fields.getMap();

// Grab the fields from the describe method and append them to the queryString one by one.

chirag64

Git Workflow

Below is our current practice for using Git (the technology) & Github (the repository) when collaborating on projects. This process assumes that you already have Git installed & configured, and there is an existing project repository on Github with a "development" branch already setup.

If you do not have Git installed, follow these instructions.

This process also assumes that you are using the command line, however most of these tasks can be performed with a desktop client like Github for Mac or Tower.

Process

Getting Started

1.) Open terminal and locate the project directory you wish to use.

chirag64

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

chirag64

# Watch a file changes in the current directory, 
# Execute all tests when a file is changed or renamed

$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = Get-Location
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $false
$watcher.NotifyFilter = [System.IO.NotifyFilters]::LastWrite -bor [System.IO.NotifyFilters]::FileName
 
while($true)

chirag64

# How to use:
#
# Dependencies - scort, imagemagick, i3lock
#
# Just place a lock.png in your home folder to overlay whatever you want 

#!/bin/bash
scrot -e 'convert -blur 0x3 $f ~/lockbg.png'
convert -gravity center -composite ~/lockbg.png ~/lock.png ~/lockfinal.png
i3lock -i ~/lockfinal.png -p default -e

chirag64

if (Object.defineProperty && Object.getOwnPropertyDescriptor && Object.getOwnPropertyDescriptor(Element.prototype, "textContent") && !Object.getOwnPropertyDescriptor(Element.prototype, "textContent").get) {
	(function() {
		var innerText = Object.getOwnPropertyDescriptor(Element.prototype, "innerText");
		Object.defineProperty(Element.prototype, "textContent",
			{
				get: function() {
					return innerText.get.call(this);
				},
				set: function(s) {
					return innerText.set.call(this, s);

chirag64

// var parser = document.createElement('a');
// parser.href = "http://user:secretpassword@example.com:3000/pathname/?search=test#hash";
// OR

var parser = new URL("http://user:secretpassword@example.com:3000/pathname/?search=test#hash");
parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.search;   // => "?search=test"

chirag64

Arch Linux VM Setup

Beginner's Guide

Following the steps found on the Arch wiki: https://wiki.archlinux.org/index.php/Beginners%27_Guide

• set font