getify

/*
wordArray: { words: [..], sigBytes: words.length * 4 }
*/

// assumes wordArray is Big-Endian (because it comes from CryptoJS which is all BE)
// From: https://gist.github.com/creationix/07856504cf4d5cede5f9#file-encode-js
function convertWordArrayToUint8Array(wordArray) {
	var len = wordArray.words.length,
		u8_array = new Uint8Array(len << 2),
		offset = 0, word, i

hofmannsven

MySQL

Getting started

• http://www.sqlteaching.com/
• https://www.codecademy.com/learn/learn-sql
• https://www.codecademy.com/catalog/language/sql

Related tutorials

• MySQL-CLI
• Analyzing Business Metrics

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






\

alex-shpak

private class HttpInterceptor implements Interceptor {

	@Override
	public Response intercept(Chain chain) throws IOException {
		Request request = chain.request();

		//Build new request
		Request.Builder builder = request.newBuilder();
		builder.header("Accept", "application/json"); //if necessary, say to consume JSON
		

heiswayi

JavaScript (jQuery) Style Guide

All rules and guidelines in this document apply to jQuery files unless otherwise noted.

The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.

Most sections are broken up into two parts:

1. Overview of all rules with a quick example
2. Each rule called out with examples of do's and don'ts

jahe

// Enable component-scanning and auto-configuration with @SpringBootApplication Annotation
// It combines @Configuration + @ComponentScan + @EnableAutoConfiguration
@SpringBootApplication
public class FooApplication {
  public static void main(String[] args) {
    // Bootstrap the application
    SpringApplication.run(FooApplication.class, args);
  }
}

finalfantasia

Terms

• Generic Type
• Generic Method
• Type Parameter
• Type Argument
• Parameterized Type
• Type Erasure
• Wildcard (?)

Example

tuxfight3r

Docker Cheat Sheet

NOTE: This used to be a gist that continually expanded. It's now a github project because it's considerably easier for other people to edit, fix and expand on Docker using Github. Just click README.md, and then on the "writing pen" icon on the right to edit.

• Why
• Prerequisites
• Installation
• Containers
• Images
• Registry and Repository

Dammmien

# POST a JSON file and redirect output to stdout
wget -q -O - --header="Content-Type:application/json" --post-file=foo.json http://127.0.0.1

# Download a complete website
wget -m -r -linf -k -p -q -E -e robots=off http://127.0.0.1

# But it may be sufficient
wget -mpk http://127.0.0.1

# Download all images of a website

iSergius

Below are the Big O performance of common functions of different Java Collections.


List                 | Add  | Remove | Get  | Contains | Next | Data Structure
---------------------|------|--------|------|----------|------|---------------
ArrayList            | O(1) |  O(n)  | O(1) |   O(n)   | O(1) | Array
LinkedList           | O(1) |  O(1)  | O(n) |   O(n)   | O(1) | Linked List
CopyOnWriteArrayList | O(n) |  O(n)  | O(1) |   O(n)   | O(1) | Array