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Setup (Linux)

Virtualenv

It is always recommened to use virtualenv while you are doing development. virtualenv lets you create isolated development environments. It will help you not to mixup dependencies when working on more than one project on your machine.

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def reverse_it(arr):
  if not arr:
    return 
  
  high, low = len(arr) - 1 , 0

  while high > low:
    arr[low], arr[high] = arr[high], arr[low]
    high, low = high - 1, low + 1
    

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$ sudo service postgresql start
$ pg_lsclusters 
$ sudo pg_ctlcluster 9.6 main start

$sudo rabbitmqctl add_user myuser mypassword
$ sudo rabbitmqctl add_vhost myvhost
$ sudo rabbitmqctl set_user_tags myuser mytag
$ sudo rabbitmqctl set_permissions -p myvhost myuser ".*" ".*" ".*"

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<div id="root"></div>
<script src="unpkg.com/react@16.0.0/umd/react.production.min.js"></script>
<script src="unpkg.com/react-dom@16.0.0/umd/react-dom.production.min.js
"></script>

<script type="text/javascript"> 
//   const rootElement = document.getElementById('root');
//   const element = document.createElement('div');
//   element.textContent = 'Hello World';
//   element.className = 'container';

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doctype html
html
  head
    title= title
    link(rel='stylesheet' href='https://yastatic.net/bootstrap/3.3.6/css/bootstrap.min.css')
    link(rel='stylesheet', href='/stylesheets/style.css')
    
  body
    block content

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doctype html
html
  head
    title= title
    
    link(rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css'
    integrity='sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u' crossorigin='anonymous')
    
    link(rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css')
    

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fs.createReadStream(file)
  .pipe(crypto.createDecipher('aes192', 'a_secret'))
  .pipe(zlib.createGunzip())
  .pipe(reportProgress)
  .pipe(fs.createWriteStream(file.slice(0, -3)))
  .on('finish', () => console.log('Done'));

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const fs = require('fs');
const zlib = require('zlib');
const file = process.argv[2];

fs.createReadStream(file)
  .pipe(zlib.createGzip())
  .pipe(fs.createWriteStream(file + '.gz'));

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function destroyer(arr) {
  // Remove all the values
  var args = Array.from(arguments);
  args = args.slice(1);
  return arr.filter(function(val){
    return args.indexOf(val) == -1;
});
}

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function rot13(str) {
var arr = [];
  for(var i = 0; i < str.length; i++){
    var code = 0;
    code = str.charCodeAt(i);
    if(code < 65){
      arr.push(String.fromCharCode(code));
    } else{
      code = code + 13;
      if(code > 90){