Skip to content

Instantly share code, notes, and snippets.

View bitttttten's full-sized avatar
👻
hello

bitttttten

👻
hello
View GitHub Profile
@mattes
mattes / og.txt
Last active May 7, 2022 01:53
Open Graph debugger
http://ogp.me/
https://moz.com/blog/meta-data-templates-123
https://search.google.com/structured-data/testing-tool
https://developers.facebook.com/tools/debug/og/object - https://developers.facebook.com/docs/reference/opengraph
https://cards-dev.twitter.com/validator - https://dev.twitter.com/cards/types
https://developers.pinterest.com/tools/url-debugger/ - https://developers.pinterest.com/docs/rich-pins/overview/
https://developer.linkedin.com/docs/share-on-linkedin
@slorber
slorber / appIdentity.md
Last active August 14, 2016 16:22
A useful trick to share more easily React components across different applications

Intro

This pattern is for those of you that maintain multiple applications and need to build components that can be reused across all these apps. It won’t be useful if you build components meant to be reused in the same application.

Your typical app structure

If you use smart/dumb, or container/presentational components, which you should if you want your components to be at least a little reusable, your typical application might look like this:

@castano
castano / hemicube.cpp
Created June 20, 2014 09:46
Hemicube Integrator
#include "hemicube.h"
#define PACK_HEMICUBES 1
static void get_hemicube_face_normal(int index, Vector3 *forward, Vector3 *left, Vector3 *up) {
// Unwrapped hemicube with positive-Z in the middle.
switch (index) {
case 0: *forward = Vector3(+1, 0, 0); *left = Vector3( 0, 1, 0); break;
@jboner
jboner / latency.txt
Last active April 19, 2025 21:29
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD