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Steve Coffman StevenACoffman

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@staltz
staltz / introrx.md
Last active June 7, 2024 23:39
The introduction to Reactive Programming you've been missing
@alangpierce
alangpierce / BigBingo
Last active May 26, 2022 02:05
BigBingo (as of early July 2014)
Snapshot of Khan Academy's BigBingo A/B testing framework and related code.
Here's a basic overview:
-summarize.py is the most interesting file. It contains all stages of the
summarize task, as well as the publish and archive steps that happen at the
end.
-bq_pipelines.py contains lots of useful pipelines for interacting with
BigQuery. QueryToTableBatchPipeline can run many simultaneous queries, and will
properly handle all batching and retry logic.
-config.py is where all experiment configuraiton lives. For this Gist, I
@mattes
mattes / check.go
Last active June 11, 2024 01:29
Check if file or directory exists in Golang
if _, err := os.Stat("/path/to/whatever"); os.IsNotExist(err) {
// path/to/whatever does not exist
}
if _, err := os.Stat("/path/to/whatever"); !os.IsNotExist(err) {
// path/to/whatever exists
}
@ambakshi
ambakshi / aws-sdb-example.md
Last active April 24, 2017 14:42
Accessing sdb from the awscli 
$ aws configure set preview.sdb true
$ aws sdb create-domain skv
$ aws sdb put-attributes --domain-name skv --item-name ami_idx --attributes Name=app-mwios-asg,Value=1
$ aws sdb put-attributes --domain-name skv --item-name ami_idx --attributes Name=app-ccand-asg,Value=5

$ aws sdb get-attributes --domain-name skv --item-name ami_idx --attribute-names app-mwios-asg
{
"Attributes": [

{

@vszakats
vszakats / s3-upload-aws4.sh
Last active February 29, 2024 14:23
AWS S3 upload using signature v4
#!/bin/sh
# To the extent possible under law, Viktor Szakats
# has waived all copyright and related or neighboring rights to this
# script.
# CC0 - https://creativecommons.org/publicdomain/zero/1.0/
# SPDX-License-Identifier: CC0-1.0
# THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
@ngauthier
ngauthier / timeout_and_tick.go
Created February 10, 2015 18:14
Golang timeout and tick loop
// keepDoingSomething will keep trying to doSomething() until either
// we get a result from doSomething() or the timeout expires
func keepDoingSomething() (bool, error) {
timeout := time.After(5 * time.Second)
tick := time.Tick(500 * time.Millisecond)
// Keep trying until we're timed out or got a result or got an error
for {
select {
// Got a timeout! fail with a timeout error
case <-timeout:
@DHager
DHager / transcribed_html5_video.html
Last active April 30, 2019 21:28
Something I whipped up for a Seattle Startup Weekend event, provides a "transcript" of a video based on its closed-captioning data, and allows you to use the text to seek in the video.
<html>
<head>
<script type="text/javascript" src="jquery-1.11.0.js"></script>
<style>
#transcript{
background-color:#F0F0F0;
min-height:50px;
padding:5px;
}
#transcript span.active {
@chantastic
chantastic / on-jsx.markdown
Last active May 30, 2024 13:11
JSX, a year in

Hi Nicholas,

I saw you tweet about JSX yesterday. It seemed like the discussion devolved pretty quickly but I wanted to share our experience over the last year. I understand your concerns. I've made similar remarks about JSX. When we started using it Planning Center, I led the charge to write React without it. I don't imagine I'd have much to say that you haven't considered but, if it's helpful, here's a pattern that changed my opinion:

The idea that "React is the V in MVC" is disingenuous. It's a good pitch but, for many of us, it feels like in invitation to repeat our history of coupled views. In practice, React is the V and the C. Dan Abramov describes the division as Smart and Dumb Components. At our office, we call them stateless and container components (view-controllers if we're Flux). The idea is pretty simple: components can't

@blueyed
blueyed / xterm-bg.sh
Last active March 19, 2024 01:02
Query background setting from terminal (xterm / rxvt-unicode)
#!/bin/sh
#
# Query a property from the terminal, e.g. background color.
#
# XTerm Operating System Commands
# "ESC ] Ps;Pt ST"
oldstty=$(stty -g)
# What to query?
@pcn
pcn / example.md
Last active September 14, 2023 19:40
Using jq to get+filter aws data

I've been playing with jq, and I've been having a hard time finding examples of how it works with output from a service like AWS (which I use a lot).

Here is one I use a lot with vagrant-ec2.

When we're launching and killing a lot of instances, the AWS API is the only way to track down which instances are live, ready, dead, etc.

To find instances that are tagged with e.g. {"Key" = "Name", "Value" = "Web-00'} in the middle of a vagrant dev cycle, or a prod launch/replace cycle, you can do something like this: