amit08255

// use (16 chars of) 'password' to encrypt 'plaintext'

function encrypt(plaintext, password) {
  var v = new Array(2), k = new Array(4), s = "", i;

  plaintext = escape(plaintext);  // use escape() so only have single-byte chars to encode 

  // build key directly from 1st 16 chars of password
  for (var i=0; i<4; i++) k[i] = Str4ToLong(password.slice(i*4,(i+1)*4));

amit08255

gocipher

Classical ciphers

• Alberti cipher | dCode
• ✔ Atbash cipher | dCode | Practical Cryptography | Rumkin.com

amit08255

/*

JavaScript Caesar shift
by Evan Hahn (evanhahn.com)

"Encrypt" like this:

    caesarShift('Attack at dawn!', 12);    // Returns "Mffmow mf pmiz!"

And "decrypt" like this:

amit08255

// XORCipher - Super simple encryption using XOR and Base64
//
// Depends on [Underscore](http://underscorejs.org/).
//
// As a warning, this is **not** a secure encryption algorythm. It uses a very
// simplistic keystore and will be easy to crack.
//
// The Base64 algorythm is a modification of the one used in phpjs.org
// * http://phpjs.org/functions/base64_encode/
// * http://phpjs.org/functions/base64_decode/

amit08255

@mixin hideScrollbar {
  // https://blogs.msdn.microsoft.com/kurlak/2013/11/03/hiding-vertical-scrollbars-with-pure-css-in-chrome-ie-6-firefox-opera-and-safari/
  // There is a CSS rule that can hide scrollbars in Webkit-based browsers (Chrome and Safari).
  &::-webkit-scrollbar {
    width: 0 !important
  }
  // There is a CSS rule that can hide scrollbars in IE 10+.
  -ms-overflow-style: none;
  
  // Use -ms-autohiding-scrollbar if you wish to display on hover.

amit08255

//  FUN METHOD
/**
 * Remove duplicates from an array of objects in javascript
 * @param arr - Array of objects
 * @param prop - Property of each object to compare
 * @returns {Array}
 */
function removeDuplicates( arr, prop ) {
  let obj = {};
  return Object.keys(arr.reduce((prev, next) => {

amit08255

// deep copy:
// String, Number, undefined, null, Set, Map, typed Array, Object, Boolean, RegExp, Date, ArrayBuffer, Node
// Functions, Properties of types: (Primitive, Symbol)
// shallow copy (by reference):
// WeakMap, WeakSet, Symbol
// increased compatibility: IE, Node
var $jscomp = $jscomp || {};
$jscomp.scope = {};
$jscomp.ASSUME_ES5 = !1;
$jscomp.defineProperty = $jscomp.ASSUME_ES5 || "function" == typeof Object.defineProperties ? Object.defineProperty : function(a, b, c) {

amit08255

Getting Started

1. Install:

• jest: npm install --save-dev jest
• ts-jest: npm install --save-dev ts-jest @types/jest

2. Modify package.json

    "transform": {
      "^.+\\.tsx?$": "ts-jest"
    },

amit08255

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

amit08255

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