phoenix24

package spikes.cluster

import akka.actor._
import com.typesafe.config.ConfigFactory
import akka.contrib.pattern.{ClusterClient, ClusterReceptionistExtension}

object DemoMaster {

  def main(args: Array[String]): Unit = {

mwhite

The Ultimate Git Alias Setup

If you use git on the command-line, you'll eventually find yourself wanting aliases for your most commonly-used commands. It's incredibly useful to be able to explore your repos with only a few keystrokes that eventually get hardcoded into muscle memory.

Some people don't add aliases because they don't want to have to adjust to not having them on a remote server. Personally, I find that having aliases doesn't mean I that forget the underlying commands, and aliases provide such a massive improvement to my workflow that it would be crazy not to have them.

The simplest way to add an alias for a specific git command is to use a standard bash alias.

# .bashrc

rxaviers

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

runarorama

sealed trait Interact[A]

case class Ask(prompt: String)
  extends Interact[String]

case class Tell(msg: String)
  extends Interact[Unit]

trait Monad[M[_]] {
  def pure[A](a: A): M[A]

oleksii-zavrazhnyi

DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )

Is a useful one-liner which will give you the full directory name of the script no matter where it is being called from

These will work as long as the last component of the path used to find the script is not a symlink (directory links are OK). If you want to also resolve any links to the script itself, you need a multi-line solution:

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink

apolloclark

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

Yord

// If you haven't already, watch Brian Lonsdorf's "Hey Underscore, You're Doing It Wrong!":
// http://functionaltalks.org/2013/05/27/brian-lonsdorf-hey-underscore-youre-doing-it-wrong/

const { append, eqProps, identity, map, mergeWith, nthArg, pipe, reject, when } = require('Ramda');

const idEquals = eqProps('id');



// Reducers as data-less action function (returns a function that

ipbastola

JQ to filter JSON by value

Syntax: cat <filename> | jq -c '.[] | select( .<key> | contains("<value>"))'

Example: To get json record having _id equal 611

cat my.json | jq -c '.[] | select( ._id | contains(611))'

Remember: if JSON value has no double quotes (eg. for numeric) to do not supply in filter i.e. in contains(611)

Yord

// Paste e.g. in https://scastie.scala-lang.org

object Foo {
  def main(args: Array[String]): Unit = {
    def some[A](a: A): Option[A] = Some(a)
    
    val inc: Int => Int = _ + 1
    
    println(
      map(inc)(List(1, 2, 3, 4))

ww9

Blogging with Gist

Gist simplicity can turn blogging into a liberating experience.

Pros	Cons
✅ Free, simple, fast, hassle-free	❌ Image upload in comments only
✅ Tagging	❌ No post pinning
✅ Search	❌ Doesn't look like a blog
✅ Revisions	❌ Unfriendly URLs