vijayparikh

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

vijayparikh

Use this trick to bulk delete your old repos or old forks

(Inspired by https://medium.com/@icanhazedit/clean-up-unused-github-rpositories-c2549294ee45#.3hwv4nxv5)

1. Open in a new tab all to-be-deleted github repositores (Use the mouse’s middle click or Ctrl + Click) https://github.com/username?tab=repositories

2. Use one tab https://chrome.google.com/webstore/detail/onetab/chphlpgkkbolifaimnlloiipkdnihall to shorten them to a list.

3. Save that list to some path

4. The list should be in the form of “ur_username\repo_name” per line. Use regex search (Sublime text could help). Search for ' |.*' and replace by empty.

vijayparikh

import asyncio
import psycopg2

# dbname should be the same for the notifying process
conn = psycopg2.connect(host="localhost", dbname="example", user="example", password="example")
conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)

cursor = conn.cursor()
cursor.execute(f"LISTEN match_updates;")

vijayparikh

# Command Line to run from terminal
# Logs result to file s3_backup.log
# Command will run in the background
s3cmd sync -v /path/to/folder/ s3://s3-bucket/folder/ > s3_backup.log 2>&1 &

# Crontab command to sync folder to S3
# Command will run 1am every day and logs result to /root/s3_backup.log
0 1 * * * /usr/bin/s3cmd sync -rv /path/to/folder/ s3://s3-bucket/folder/ >> /root/s3_backup.log

vijayparikh

If you need to access/manage files stored on Amazon S3 bucket via SFTP, you can mount the bucket to a file system on a Linux server and access the files using the SFTP as any other files on the server.


Creating Access Server

Launch a new Amazon EC2 server. A basic Amazon Linux AMI (free tier eligible) server will generally suffice and the following instructions are tested on this distribution. Instructions for other distributions may differ.

To install the s3fs file system

-	Login to your Linux server via SSH. 

vijayparikh

#!/usr/bin/env ruby

require 'optparse'
require 'open-uri'
require 'json'
require 'csv'

options = {}
ARGV << '-h' if ARGV.empty?
OptionParser.new do |opts|

vijayparikh

@IBOutlet weak var qrCodeBox: UIImageView!

func createQRFromString(_ str: String, size: CGSize) -> UIImage {
    let stringData = str.data(using: .utf8)

  let qrFilter = CIFilter(name: "CIQRCodeGenerator")!
  qrFilter.setValue(stringData, forKey: "inputMessage")
  qrFilter.setValue("H", forKey: "inputCorrectionLevel")

  let minimalQRimage = qrFilter.outputImage!

vijayparikh

import java.io.*;
import java.util.*;
import java.text.*;

public class ArrayMerge {

    public static int[] merge(int[] A, int[] B) {
        int i, j, k, m, n;
        i = 0;
        j = 0;

vijayparikh

module GPS
  class Distance
    RAD_PER_DEG = Math::PI / 180
    GREAT_CIRCLE_RADIUS_MILES = 3956
    GREAT_CIRCLE_RADIUS_KILOMETERS = 6371 # some algorithms use 6367
    GREAT_CIRCLE_RADIUS_FEET = GREAT_CIRCLE_RADIUS_MILES * 5280
    GREAT_CIRCLE_RADIUS_METERS = GREAT_CIRCLE_RADIUS_KILOMETERS * 1000
    GREAT_CIRCLE_RADIUS_NAUTICAL_MILES = GREAT_CIRCLE_RADIUS_MILES / 1.15078

    attr_accessor :great_circle_distance