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@voronoipotato
voronoipotato / gist:01a0dd1357cfedcf17e928a8ef2b1afd
Created Sep 19, 2019 — forked from jorool/gist:57714bcdc06953531749
Powershell script to download images from multiple urls
View gist:01a0dd1357cfedcf17e928a8ef2b1afd
$images = 'https://foo.jpg', 'https://bar.jpg'
$targetDir = 'C:\foo\bar'
function DownloadFile([Object[]] $sourceFiles,[string]$targetDirectory) {
$wc = New-Object System.Net.WebClient
foreach ($sourceFile in $sourceFiles){
$sourceFileName = $sourceFile.SubString($sourceFile.LastIndexOf('/')+1)
$targetFileName = $targetDirectory + $sourceFileName
$wc.DownloadFile($sourceFile, $targetFileName)
View generate_series.sql
-- http://blog.jooq.org/2013/11/19/how-to-create-a-range-from-1-to-10-in-sql/
IF EXISTS (SELECT *
FROM dbo.sysobjects
WHERE id = object_id (N'[dbo].[generate_series]')
AND OBJECTPROPERTY(id, N'IsTableFunction') = 1)
DROP FUNCTION [dbo].[generate_series]
GO
CREATE FUNCTION [dbo].[generate_series] ( @p_start INT, @p_end INT)
@voronoipotato
voronoipotato / base64-web-safe.js
Created Jan 23, 2018 — forked from geraintluff/base64-web-safe.js
Convert base64 to and from web-safe variant
View base64-web-safe.js
// Convert from normal to web-safe, strip trailing "="s
function webSafe64(base64) {
return base64.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
}
// Convert from web-safe to normal, add trailing "="s
function normal64(base64) {
return base64.replace(/\-/g, '+').replace(/_/g, '/') + '=='.substring(0, (3*base64.length)%4);
}
@voronoipotato
voronoipotato / fizzbuzz_in_DBN.fsx
Created Sep 26, 2017 — forked from paralax/fizzbuzz_in_DBN.fsx
i ported that "fizzbuzz in tensorflow" to F# and Accord.Net's DeepBeliefNetwork
View fizzbuzz_in_DBN.fsx
// i ported that "fizzbuzz in tensorflow" to F# and Accord.Net's DeepBeliefNetwork
// http://joelgrus.com/2016/05/23/fizz-buzz-in-tensorflow/
#r "Debug/Accord.dll"
#r "Debug/Accord.Math.dll"
#r "Debug/Accord.Neuro.dll"
#I "Debug"
open Accord.Neuro
open Accord.Neuro.Networks
@voronoipotato
voronoipotato / EventStoreConnectionExtensions.cs
Created Apr 24, 2017 — forked from jen20/EventStoreConnectionExtensions.cs
Quick and dirty way to hook up RX to an Event Store subscription. Emphasis on "quick" and "dirty".
View EventStoreConnectionExtensions.cs
static class EventStoreConnectionExtensions
{
public static Task<EventStoreRxSubscription> SubscribeToAll(this EventStoreConnection connection, bool resolveLinkTos)
{
return Task<EventStoreRxSubscription>.Factory.StartNew(() => {
var subject = new Subject<ResolvedEvent>();
var subscriptionTask = connection.SubscribeToAll(resolveLinkTos, subject.OnNext, () => subject.OnError(new SubscriptionDroppedException()));
subscriptionTask.Wait();
@voronoipotato
voronoipotato / introrx.md
Created Aug 18, 2016 — forked from staltz/introrx.md
The introduction to Reactive Programming you've been missing
View introrx.md
@voronoipotato
voronoipotato / latency.txt
Created Feb 16, 2016 — forked from jboner/latency.txt
Latency Numbers Every Programmer Should Know
View latency.txt
Latency Comparison Numbers
--------------------------
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
View tmux-cheatsheet.markdown

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
View get_barcode_from_image.js
/*
* Copyright (c) 2010 Tobias Schneider
* This script is freely distributable under the terms of the MIT license.
*/
(function(){
var UPC_SET = {
"3211": '0',
"2221": '1',
"2122": '2',
View README.md
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