jakecoffman

def printer(Element1 element) {
    println "${element.name} ${element.element1Specific}"
}

def printer(Element2 element) {
    println "${element.name} ${element.element2Specific}"
}

jakecoffman

def randomElement
// simulate user input, for instance
if (new Random().nextInt() % 2 == 0) {
    randomElement = new Element1()
} else {
    randomElement = new Element2()
}

printer(randomElement)

jakecoffman

// Main
IElement element = getElement()
printer(element)

// Classes
IElement getElement() {
    // simulate not knowing the type of element at runtime
    if (new Random().nextInt() % 2 == 0) {
        return new Element1(var1: "hello")
    } else {

jakecoffman

package main

import (
	"fmt"
	"strings"
)

type BinaryTree struct {
	Node  int // or whatever
	Left  *BinaryTree

jakecoffman

Bad

1. can't trace uncaught rejections back to the calling code
2. dependency hell, immature dependencies, forks on forks
3. inconsistent use of promises, e.g. mongoose you need to remember .exec and it doesn't throw but returns null
4. debugging is rough, end up console logging most of the time
5. promises are confusing, you can avoid them for a while with async/await or co but eventually they will bite you

Good

jakecoffman

package bench

import "testing"

func Benchmark_InterfaceMethods(b *testing.B) {
	s := &Struct{}

	for n := 0; n < b.N; n++ {
		s.Method()
	}

jakecoffman

import com.codingame.gameengine.runner.MultiplayerGameRunner
import com.codingame.gameengine.runner.dto.GameResult
import groovy.time.TimeCategory
import groovyx.gpars.GParsPool

class Simulator {
    static final champion = "config/champion.exe"
    static final challenger = "config/challenger.exe"

    static void main(String[] args) {

jakecoffman

Intigriti's November XSS challenge solution

Find a way to execute arbitrary javascript

Challenge page is here https://challenge-1121.intigriti.io/challenge/index.php?s=security

Upon loading the page I see the following:

jakecoffman

crud.Spec{
	Method:  "PATCH",
	Path:    "/authors/{id}",
	Summary: "Patch an author",
	Tags:    tags,
	Handler: PatchAuthor,
	Validate: crud.Validate{
		Path: crud.Object(map[string]crud.Field{
			"id": crud.Integer().Required(),
		}),

jakecoffman

package main

import (
	"log"
	"net/http"
	"time"
)

func main() {
	log.SetFlags(log.Lshortfile)