ProTip

-----BEGIN PGP PUBLIC KEY BLOCK-----
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ProTip

for(int w = 0; w < width; w++) {
    for(int h = 0; h < height; h++) {
        maskPos = w * height + h;
        colorPos = h * width + w;
        colorMask[colorPos] = mask[maskPos];
    }
}

ProTip

-----BEGIN PGP PUBLIC KEY BLOCK-----
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ProTip

import React, {Component} from 'react';
import ReactDOM from 'react-dom';
import {observer} from "mobx-react";

@observer
class TodoListView extends Component {
    render() {
        return <div>
            <ul>
                {this.props.todoList.todos.map(todo =>

ProTip

Promise = require "bluebird"
async = Promise.coroutine


AsyncError = async ->
  throw new Error "AThrower exceptinon."
  yield return

NestedAsyncError = async ->
  yield do async ->

ProTip

class Chef
  class Recipe
    class ProTip
      class StreamReader
        require 'stringio'
        def initialize
          @callbacks = Hash.new { |h, k| h[k] = [] }
          @buffer = StringIO.new
        end

ProTip

cmd = powershell_out("Get-NetFirewallRule -DisplayName 'Block AWS Metadata'")
case cmd.exitstatus
  when 1
    powershell_out!("New-NetFirewallRule -DisplayName 'Block AWS Metadata' -Action Block -Direction 'outbound' -RemoteAddress '169.254.169.254' -RemotePort '80' -Protocol 'tcp' | Get-NetFirewallSecurityFilter | Set-NetFirewallSecurityFilter -LocalUser 'O:LSD:(D;;CC;;;SY)(D;;CC;;;LA)'")
  when 0
    powershell_out!("Set-NetFirewallRule -DisplayName 'Block AWS Metadata' -Action Block -Direction 'outbound' -RemoteAddress '169.254.169.254' -RemotePort '80' -Protocol 'tcp' ")
    powershell_out!("Get-NetFirewallRule -DisplayName 'Block AWS Metadata' | Get-NetFirewallSecurityFilter | Set-NetFirewallSecurityFilter -LocalUser 'O:LSD:(D;;CC;;;SY)(D;;CC;;;LA)' ")
end

ProTip

powershell_script 'firewall_metadata' do
  guard_interpreter :powershell_script
  code "New-NetFirewallRule -DisplayName 'Block AWS Metadata' -Direction 'outbound' -RemoteAddress '169.254.169.254' -RemotePort '80' -Protocol 'tcp' | Get-NetFirewallSecurityFilter | Set-NetFirewallSecurityFilter -LocalUser 'O:LSD:(D;;CC;;;SY)'"
  not_if "Get-NetFirewallRule -DisplayName 'Block AWS Metadata'"
end

ProTip

var field = "This is an error message about windows"

func main(){
	fmt.Println("Hello World")
	matcher := regexp.MustCompile(`(windows)|(bob)|(error)`)
	matches := matcher.FindAllStringSubmatch(field,-1)
	fmt.Println(matches)


#######################################

ProTip

func ParseBillingPeriodDate(s string, report *BillingReport) interface{} {
 var returnTime time.Time
var err error
	switch s { case "":
returnTime = report.InvoicePeriod
	default:
	  returnTime, err = time.Parse("2006/01/02 15:04:05", s)
	if err != nil { panic(err.Error()) }
	}
	return returnTime.Format(time.RFC3339)