andrebq

Braking

Standard Braking Distance

• DE: (Geschwindigkeit / 10) * (Geschwindigkeit / 10)
• EN: (Speed / 10) * (Speed / 10)

Evasive (Emergency) Braking Distance

• DE: ((Geschwindigkeit / 10) * (Geschwindigkeit / 10)) / 2
• EN: ((Speed / 10) * (Speed / 10)) / 2

seanbehan

create temporary table temp (symbol varchar(255), open decimal, high decimal, low decimal, close decimal, volume varchar(255), date date );

create table if not exists stocks (id serial primary key, symbol varchar(255), open decimal, high decimal, low decimal, close decimal, volume varchar(255), date date, created_at timestamp, updated_at timestamp);

copy temp (symbol, date, open, high, low, close, volume) from '/path/to/file.csv' with delimiter ',' csv header;

delete from stocks using temp where stocks.date = temp.date and stocks.symbol = temp.symbol;

insert into stocks (symbol, open, high, low, close, volume, date) select symbol, open, high, low, close, volume, date from temp;

tbarbugli

How to build a notification feed using Stream

Introduction

In this tutorial we are going to show how easy it is to build a notification feed using GetStream.io. First of all, let's quickly introduce you to our fictional example app. It's called bug-your-friends.com and allows you interact with your friends, ping them, follow them or poke them. Here's a quick list of example interactions:

• poke another user (eg. Thierry pokes Alessandra)
• follow a user (eg. Tommaso follows Iris)
• ping a user (eg. Josie pings Carolina)

Whenever a user is part of one of these interactions, we want to update his notification feed, update the number of unseen and unread

ryanflorence

Folder Structure

Please note

While this gist has been shared and followed for years, I regret not giving more background. It was originally a gist for the engineering org I was in, not a "general suggestion" for any React app.

Typically I avoid folders altogether. Heck, I even avoid new files. If I can build an app with one 2000 line file I will. New files and folders are a pain.