justinbmeyer

JavaScript Code

var str = "hi";

Memory allocation:

Address	Value	Description
......	...

tmcw

The difference between XYZ and TMS tiles and how to convert between them

Lots of tile-based maps use either the XYZ or TMS scheme. These are the maps that have tiles ending in /0/0/0.png or something. Sometimes if it's a script, it'll look like &z=0&y=0&x=0 instead. Anyway, these are usually maps in Spherical Mercator.

Good examples are OpenStreetMap, Google Maps, MapBox, MapQuest, etc. Lots of maps.

Most of those are in XYZ. The best documentation for that is slippy map tilenames on the OSM Wiki, and Klokan's Tiles a la Google.

felixge

# setup fd 3 as udp connection to drone
exec 3<>/dev/udp/192.168.1.1/5556
# takeoff
echo -e "AT*REF=1,512\r" >&3
# landing
echo -e "AT*REF=2,0\r" >&3

...

# profit?

frsyuki

MessagePack update proposal v5

# MessagePack specification

MessagePack is an object serialization specification like JSON.

MessagePack has two concepts: type system and formats. Serialization is conversion from application types into MessagePack formats via MessagePack types. Deserialization is conversion from MessagePack formats into application types via MessagePack types.

Serlialization:

klutzy

#!/bin/sh

# this assumes you are using mingw-w64 platform.
# if not, add --linker=x86_64-w64-mingw32-g++.exe option

TARGET=x86_64-w64-mingw32

RUST_ROOT=/c/home/stone/rust

# copy mingw runtime dlls to the dir to prevent dll hell.

transitive-bullshit

// total number of samples at each fragment
#define NUM_SAMPLES           {{ numSamples }}

#define NUM_SPIRAL_TURNS      {{ numSpiralTurns }}

#define USE_ACTUAL_NORMALS    {{ useActualNormals }}

#define VARIATION             {{ variation }}

uniform sampler2D sGBuffer;

jvns

(You can comment here.)

Here I'm trying to understand what happens when I run

./hello

#include 

pgte

I built this service rendered over HTTPS.

We're using the Hawk protocol to authenticate message producers, but since the service will use HTTPS, Hawk is an overkill in my opinion.

Some of the drawbacks of using Hawk in my opinion:

1. Signs whole message: overkill when you're using TLS
2. Tries to be stateless on the server-side and implements a sort of message non-repeatability by including a timestamp inside the message. The timestamp has to be equal to the server-side time take or give 1 minute. This imposes time synchronizatin between client and server, which is hard to enforce.

jvns

A lot of these are outright stolen from Edward O'Campo-Gooding's list of questions. I really like his list.

I'm having some trouble paring this down to a manageable list of questions -- I realistically want to know all of these things before starting to work at a company, but it's a lot to ask all at once. My current game plan is to pick 6 before an interview and ask those.

I'd love comments and suggestions about any of these.

I've found questions like "do you have smart people? Can I learn a lot at your company?" to be basically totally useless -- everybody will say "yeah, definitely!" and it's hard to learn anything from them. So I'm trying to make all of these questions pretty concrete -- if a team doesn't have an issue tracker, they don't have an issue tracker.

I'm also mostly not asking about principles, but the way things are -- not "do you think code review is important?", but "Does all code get reviewed?".

defuse

# This is well-known behavior, it's just interesting.
$ mkdir a
$ echo "hello!" > a/file.txt
$ cat a/file.txt
hello!
$ chmod 000 a/file.txt 
# Now I don't expect to be able to change a/file.txt...
$ echo "GOODBYE" > a/file.txt
bash: a/file.txt: Permission denied
# Okay, good, I can't modify the file directly.