sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
# Set the maximum number of open file descriptors
ulimit -n 20000000
# Set the memory size for TCP with minimum, default and maximum thresholds
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
type product = { | |
category: string, | |
price: string, | |
stocked: bool, | |
name: string | |
}; | |
type products = list(product); | |
let products = [ |
You got your hands on some data that was leaked from a social network and you want to help the poor people.
Luckily you know a government service to automatically block a list of credit cards.
The service is a little old school though and you have to upload a CSV file in the exact format. The upload fails if the CSV file contains invalid data.
The CSV files should have two columns, Name and Credit Card. Also, it must be named after the following pattern:
YYYYMMDD
.csv.
In all the discussions about ES6 one thing is bugging me. I'm picking one random comment here from this io.js issue but it's something that comes up over and over again:
There's sentiment from one group that Node should have full support for Promises. While at the same time another group wants generator syntax support (e.g.
var f = yield fs.stat(...)
).
People keep putting generators, callbacks, co, thunks, control flow libraries, and promises into one bucket. If you read that list and you think "well, they are all kind of doing the same thing", then this is to you.
var Dialog = React.createClass({ | |
render: function() { | |
// 1) render nothing, this way the DOM diff will never try to do | |
// anything to it again, and we get a node to mess with | |
return React.DOM.div(); | |
}, | |
componentDidMount: function() { | |
// 2) do DOM lib stuff | |
this.node = this.getDOMNode(); |
... or Why Pipelining Is Not That Easy
Golang Concurrency Patterns for brave and smart.
By @kachayev
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
This entire guide is based on an old version of Homebrew/Node and no longer applies. It was only ever intended to fix a specific error message which has since been fixed. I've kept it here for historical purposes, but it should no longer be used. Homebrew maintainers have fixed things and the options mentioned don't exist and won't work.
I still believe it is better to manually install npm separately since having a generic package manager maintain another package manager is a bad idea, but the instructions below don't explain how to do that.
Installing node through Homebrew can cause problems with npm for globally installed packages. To fix it quickly, use the solution below. An explanation is also included at the end of this document.
Summary: use good/established messaging patterns like Enterprise Integration Patterns. Don't make up your own. Don't expose transport implementation details to your application.
As much as possible, I prefer to hide Rabbit's implementation details from my application. In .Net we have a Broker abstraction that can communicate through a lot of different transports (rabbit just happens to be our preferred one). The broker allows us to expose a very simple API which is basically:
- publish
- request
- start/stop subscription
$.getScript("https://platform.linkedin.com/in.js?async=true", -> | |
IN.init({ | |
api_key: <<API Key>>, | |
authorize: true, | |
credentials_cookie: true | |
}) | |
) | |
linkedinImport = -> |