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import java.text.Normalizer

object StringUtil {

    fun slugify(word: String, replacement: String = "-") = Normalizer
            .normalize(word, Normalizer.Form.NFD)
            .replace("[^\\p{ASCII}]".toRegex(), "")
            .replace("[^a-zA-Z0-9\\s]+".toRegex(), "").trim()
            .replace("\\s+".toRegex(), replacement)
            .toLowerCase()

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<link rel="shortcut icon" width=32px>
<canvas style="display: none" id="loader" width="16" height="16"></canvas>

<script>
class Loader {
  constructor(link, canvas) {
    this.link = link;
    this.canvas = canvas;
    this.context = canvas.getContext('2d');
    this.context.lineWidth = 2;

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How to automatically start ssh server on boot on Windows Subsystem for Linux

Microsoft partnered with Canonical to create Bash on Ubuntu on Windows, running through a technology called the Windows Subsystem for Linux. Below are instructions on how to set up the ssh server to run automatically at boot.

1. Edit the /etc/ssh/sshd_config file by running the command sudo vi /etc/ssh/sshd_config and do the following
   1. Change Port to 2222 (or any other port above 1000)
   2. Change PasswordAuthentication to yes. This can be changed back to no if ssh keys are setup.
2. Restart the ssh server:
   • sudo service ssh --full-restart
3. With this setup, the ssh server must be turned on every time you run Bash on Ubuntu on Windows, as by default it is off. Use this command to turn it on:

abner

// MIT License
//
// Copyright (c) 2019 Simon Lightfoot
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

abner

import java.io.*;

public class TestProcessIO {

  public static boolean isAlive(Process p) {
    try {
      p.exitValue();
      return false;
    }
    catch (IllegalThreadStateException e) {

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http://www.dscripts.net/2010/06/09/how-to-lock-a-process-in-java-to-prevent-multiple-instance-at-the-same-time/


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// check if another process is running
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
package utils;
 
import java.io.File;
import java.io.IOException;

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MongoDB $lookup aggregation

SO link

db.votes.aggregate([{
    $lookup: {
        from: "users",
        localField: "createdBy",
        foreignField: "_id",

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Enable native memory tracking in JVM by specifying the following flag

-XX:NativeMemoryTracking=detail

Know the <PID> of the java process

jps

To print ps based RSS

ps -p <PID> -o pcpu,rss,size,vsize

To print native memory tracking summary

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export interface Environment {
	DEBUG : boolean;
	API_URL : string;
	WS_URL : string;
	BASE_URL : string;
}

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const asyncDispatcMiddleware = store => next => action => {
    let syncActivityFinished = false;
    let actionQueue = [];
  
    function flushQueue() {
      actionQueue.forEach(a => store.dispatch(a));
      actionQueue = [];
    }
  
    function asyncDispatch(asyncAction) {