jasper-lyons

# got a huge ammount of help from https://stackoverflow.com/questions/11550153/determine-position-of-number-in-a-grid-of-numbers-centered-around-0-and-increasi

def sequence(i):
  n = 2 * i - 1
  return n * n

def layer(i):
  return math.floor((math.sqrt(i) + 1) / 2)

def length(i):

csuzw

int SpiralMemoryPartOne(int location)
{
	if (location <= 1) return 0;
		
	var ring = 1; 
	var max = 9;
	while (max < location)
	{
		ring += 1;
		max += (((ring + 1) * 2) - 2) * 4;

lmakarov

'use strict';
exports.handler = (event, context, callback) => {

    // Get request and request headers
    const request = event.Records[0].cf.request;
    const headers = request.headers;

    // Configure authentication
    const authUser = 'user';
    const authPass = 'pass';

opera443399

from: 
http://chase-seibert.github.io/blog/2014/01/12/python-unicode-console-output.html

Print to the console in Python without UnicodeEncodeErrors 12 Jan 2014
I can't believe I just found out about this! If you use Python with unicode data, such as Django database records, you may have seen cases where you print a value to the console, and if you hit a record with an extended (non-ascii) character, your program crashes with the following:

Traceback (most recent call last):
  File "foobar.py", line 792, in <module>
    print value
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in range(128)

iacovlev-pavel

#
apt-get install openjdk-8-jre 

# PostgreSQL and PostGIS
apt-get install postgresql postgresql-contrib postgis postgresql-10-postgis-2.4

# Create "geoserver" database
sudo -u postgres createuser -P geoserver
sudo -u postgres createdb -O geoserver geoserver
sudo -u postgres psql -c "CREATE EXTENSION postgis; CREATE EXTENSION postgis_topology;" geoserver

drhirsch

#!/bin/bash

# useful for platforms such as Cygwin that don't currently have GNU Parallel in their repo.
# prerequisite: make

(
wd=$(mktemp -d)
wget -nc -P $wd ftp://ftp.gnu.org/gnu/parallel/parallel-latest.tar.bz2

cd $wd

slorber

function* runTimer(getState) {
  
  while(yield take('START')) {
    while(true) {
      const {stop, tick} = yield race({
        stop   : take('STOP'),
        tick : call(wait, ONE_SECOND);
      })
      if ( !stop ) {
        yield put(actions.tick());

t-mart

Map	Action
<F1>	Causes Netrw to issue help
<cr>	Netrw will enter the directory or read the file
<del>	Netrw will attempt to remove the file/directory
-	Makes Netrw go up one directory
a	Toggles between normal display, hiding (suppress display of files matching g:netrw_list_hide) showing (display only files which match g:netrw_list_hide)
c	Make browsing directory the current directory
C	Setting the editing window
d	Make a directory

javisantana

WITH deltas as (
   SELECT 
  	st_distance(the_geom::geography, lag(the_geom::geography, 1) over(order by timestamp)) as ddist,
    timestamp - lag(timestamp, 1) over(order by timestamp) as dt 
   from out_2 offset 1000
)
  
select avg(ddist/dt) as speed from deltas

AustinDizzy

#!/bin/sh
# Modified 2015, Austin Dizzy
# Copyright 2012 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

# git gofmt pre-commit hook
#
# To use, store as .git/hooks/pre-commit inside your repository and make sure
# it has execute permissions.