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@mikelehen
mikelehen / generate-pushid.js
Created February 11, 2015 17:34
JavaScript code for generating Firebase Push IDs
/**
* Fancy ID generator that creates 20-character string identifiers with the following properties:
*
* 1. They're based on timestamp so that they sort *after* any existing ids.
* 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
* 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly).
* 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the
* latter ones will sort after the former ones. We do this by using the previous random bits
* but "incrementing" them by 1 (only in the case of a timestamp collision).
*/
@RH2
RH2 / gist:1aa0cf3427ec099059d1
Last active August 29, 2015 14:10
tmpvar & rh2 javascript particles (update 557PM)
<html>
<head>
<title></title>
<style type="text/css">
body,html{
background-color: hsl(0,0%,50%);
margin:0px;
padding: 0px;
}
canvas{
@tmarshall
tmarshall / aws-sns-example.js
Last active October 30, 2022 06:12
aws-sdk sns example, in Node.js
var AWS = require('aws-sdk');
AWS.config.update({
accessKeyId: '{AWS_KEY}',
secretAccessKey: '{AWS_SECRET}',
region: '{SNS_REGION}'
});
var sns = new AWS.SNS();
@correia
correia / swift-kvo-example.swift
Last active April 16, 2023 02:38
A quick example for how to use Foundation style KVO from Swift. (Official documentation from Apple is forthcoming.)
//
// Swift-KVO
//
// Created by Jim Correia on 6/5/14.
// Copyright (c) 2014-2015 Jim Correia. All rights reserved.
//
// Update: 6/17/2014
//
// KVOContext has gone away; use the same idiom you'd use from Objective-C for the context
//
@victusfate
victusfate / choppa.coffee
Created December 13, 2013 22:40
quick mp4 segmenter
exec = require('child_process').exec;
args = process.argv.splice(2);
if args != 4
console.log 'usage: file totalTime dT outRoot'
file = args[0]
totalTime = parseFloat args[1]
dT = parseInt args[2], 10
#include <roxlu/core/Log.h>
#include <roxlu/core/Utils.h>
#include <video/X264Encoder.h>
X264Encoder::X264Encoder()
:in_width(0)
,in_height(0)
,in_pixel_format(AV_PIX_FMT_NONE)
,out_width(0)
,out_height(0)
@roxlu
roxlu / TestPattern.cpp
Created September 5, 2013 18:12
Example usage of X264. We create a raw YUV pattern and encode it with x264.
#include <cmath>
#include <assert.h>
#include <core/TestPattern.h>
TestPattern::TestPattern()
:w(0)
,h(0)
,frame_num(0)
,duration(0)
@creationix
creationix / run.js
Last active March 7, 2017 18:36
universal callback/continuable/thunk generator runner
function run(generator) {
// Pass in resume for no-wrap function calls
var iterator = generator(resume);
var data = null, yielded = false;
next();
check();
function next(item) {
var cont = iterator.next(item).value;
@datagrok
datagrok / git-serve.md
Last active April 21, 2023 07:33
How to easily launch a temporary one-off git server from any local repository, to enable a peer-to-peer git workflow.
@max-mapper
max-mapper / helloworld.js
Created November 27, 2012 06:55
droneduino
var serialport = require('node-serialport')
var sp = new serialport.SerialPort("/dev/ttyO3", {
parser: serialport.parsers.raw,
baud: 9600
})
sp.on('data', function(chunk) {
console.log(chunk.toString('hex'), chunk.toString(), chunk)
})