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- GenServer Cheatsheet by Benjamin Tan Wei Hao
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apiVersion: v1 | |
kind: ConfigMap | |
metadata: | |
name: example | |
namespace: default | |
data: | |
APPLICATION_HOST: example.com | |
LANG: en_US.UTF-8 | |
PIDFILE: /tmp/server.pid | |
PORT: "3000" |
let Uploaders = {} | |
Uploaders.S3 = function (entries, onViewError) { | |
entries.forEach(entry => { | |
let xhr = new XMLHttpRequest() | |
onViewError(() => xhr.abort()) | |
xhr.onload = () => (xhr.status === 200 ? entry.done() : entry.error()) | |
xhr.onerror = () => entry.error() | |
xhr.upload.addEventListener("progress", event => { | |
if (event.lengthComputable) { |
# https://stackoverflow.com/questions/6543519/undoing-accidental-git-stash-pop | |
# https://stackoverflow.com/questions/89332/how-to-recover-a-dropped-stash-in-git | |
accepted | |
If you have only just popped it and the terminal is still open, you will still have the hash value printed by git stash pop on screen (thanks, Dolda). | |
Otherwise, you can find it using this for Linux and Unix: | |
git fsck --no-reflog | awk '/dangling commit/ {print $3}' | |
and for Windows: |
> Thank you for reaching out to Autonomous! I am sorry to hear that you are having some trouble with your SmartDesk | |
> but I will be glad to assist. It sounds like your system needs a "hard reset" can I please have you follow these | |
> steps thoroughly. | |
Reset Steps: | |
1. Unplug the desk for 20 seconds. Plug it back in. Wait a full 20 seconds. | |
2. Press the up and down buttons until the desk lowers all the way and beeps or 20 seconds pass. | |
3. Release both buttons. | |
4. Press the down buttons until the desk beeps one more time or 20 seconds pass. |
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# Redis Cheatsheet | |
# All the commands you need to know | |
redis-server /path/redis.conf # start redis with the related configuration file | |
redis-cli # opens a redis prompt | |
# Strings. |
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Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.
Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.
This method does not add your OAuth token to Gemfile.lock
. It uses bundle config to store your credentials, and allows you to configure Heroku to use environment variables when deploying.
// The classic AJAX call - dispatch before the request, and after it comes back | |
function myThunkActionCreator(someValue) { | |
return (dispatch, getState) => { | |
dispatch({type : "REQUEST_STARTED"}); | |
myAjaxLib.post("/someEndpoint", {data : someValue}) | |
.then( | |
response => dispatch({type : "REQUEST_SUCCEEDED", payload : response}), | |
error => dispatch({type : "REQUEST_FAILED", error : error}) | |
); |
require('font-awesome/css/font-awesome.css'); | |
document.body.innerHTML = '<i class="fa fa-fw fa-question"></i>'; |