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$ python -m venv venv     # create virtual environment 
$ source venv/bin/active  # active venv 
$ deactive                # deactive venv

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function unicodeEscape(str) {
    return str.replace(/[\s\S]/g, function(character) {
        var escape = character.charCodeAt().toString(16),
            longhand = escape.length > 2;
        return '\\' + (longhand ? 'u' : 'x') + ('0000' + escape).slice(longhand ? -4 : -2);
    });
}

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<?php
// from: https://jeremycurny.com/2016/06/30/php-psr-4-autoloader/

spl_autoload_register(function ($class) {
  $file = DIR_TO_CLASS_FILES . str_replace('\\', '/', $class) . '.php';
  if (file_exists($file)) {
    require $file;
  }
});

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$ find <file path> -name *.<file extention> -exec grep --color=always '<search term>' {} \; -printf '\033[32m%p\033[0m\n

# find /data/.../.../.../ -name *.php -exec grep --color=always 'something' {} \; -printf '\033[32m%p\033[0m\n

# super charged version
$ find /data/.../.../ \( -name '*.php' -o -name '*.js' \) -exec grep --color=always 'something' {} \; -printf '\033[32m%p\033[0m\n'

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var isEmailWithTLD = function (email){
    return /^([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x22([^\x0d\x22\x5c\x80-\xff]|\x5c[\x00-\x7f])*\x22))*\x40([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d)(\x2e([^\x00-\x20\x22\x28\x29\x2c\x2e\x3a-\x3c\x3e\x40\x5b-\x5d\x7f-\xff]+|\x5b([^\x0d\x5b-\x5d\x80-\xff]|\x5c[\x00-\x7f])*\x5d))*(\.\w{2,})+$/.test(email);    
};

// Example
isEmailWithTLD('some@example'); // false
isEmailWithTLD('some@example.com'); // true

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;(function (root, factory) {

  if (typeof define === 'function' && define.amd) {
    define(factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root.YourModule = factory();
  }

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;(function (root, factory) {

  if (typeof define === 'function' && define.amd) {
    define(['jquery'], factory);
  } else if (typeof exports === 'object') {
    module.exports = factory(require('jquery'));
  } else {
    root.YourModule = factory(root.jQuery);
  }

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var myApplication = function(){
  var name = 'Chris';
  var age = '34';
  var status = 'single';
  function createMember(){
    // [...]
  }
  function getMemberDetails(){
    // [...]
  }

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var App = (function() {
  'use strict';

  var settings;

  return {
    init: function(initialSettings) {
      settings = initialSettings;
    },

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var module = (function (window, document, $) {
    // private variables and functions
    var _private = 'bar';

    // constructor
    var module = function () {
    	console.log('init module');
    };

    // prototype