s4y

var child_process = require('child_process');

// exec: spawns a shell.
child_process.exec('ls -lah /tmp', function(error, stdout, stderr){
	console.log(stdout);
});

// execFile: executes a file with the specified arguments
child_process.execFile('ls', ['-lah', '/tmp'], function(error, stdout, stderr){
	console.log(stdout);

isaacsanders

This is a post by Joel Spolsky. The original post is linked at the bottom.

This is such a common question here and elsewhere that I will attempt to write the world's most canonical answer to this question. Hopefully in the future when someone on answers.onstartups asks how to split up the ownership of their new company, you can simply point to this answer.

The most important principle: Fairness, and the perception of fairness, is much more valuable than owning a large stake. Almost everything that can go wrong in a startup will go wrong, and one of the biggest things that can go wrong is huge, angry, shouting matches between the founders as to who worked harder, who owns more, whose idea was it anyway, etc. That is why I would always rather split a new company 50-50 with a friend than insist on owning 60% because "it was my idea," or because "I was more experienced" or anything else. Why? Because if I split the company 60-40, the company is going to fail when we argue ourselves to death. And if you ju

ryansobol

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

dduvnjak

# first we download the list of IP ranges from CloudFlare
wget https://www.cloudflare.com/ips-v4

# set the security group ID
SG_ID="sg-00000000000000"

# iterate over the IP ranges in the downloaded file
# and allow access to ports 80 and 443
while read p
do

chrisroos

Testing Rails ActionMailer and AWS SES

I added two verified email addresses to AWS SES so that I could send emails from/to them while in the SES Sandbox.

UserMailer

class UserMailer < ApplicationMailer
  default from: 'accounts+aws-ses@gofreerange.com'

npearce

UPDATE (March 2020, thanks @ic): I don't know the exact AMI version but yum install docker now works on the latest Amazon Linux 2. The instructions below may still be relevant depending on the vintage AMI you are using.

Amazon changed the install in Linux 2. One no-longer using 'yum' See: https://aws.amazon.com/amazon-linux-2/release-notes/

Docker CE Install

sudo amazon-linux-extras install docker
sudo service docker start

samsch

Stop using JWTs!

TLDR: JWTs should not be used for keeping your user logged in. They are not designed for this purpose, they are not secure, and there is a much better tool which is designed for it: regular cookie sessions.

If you've got a bit of time to watch a presentation on it, I highly recommend this talk: https://www.youtube.com/watch?v=pYeekwv3vC4 (Note that other topics are largely skimmed over, such as CSRF protection. You should learn about other topics from other sources. Also note that "valid" usecases for JWTs at the end of the video can also be easily handled by other, better, and more secure tools. Specifically, PASETO.)

A related topic: Don't use localStorage (or sessionStorage) for authentication credentials, including JWT tokens: https://www.rdegges.com/2018/please-stop-using-local-storage/

The reason to avoid JWTs comes down to a couple different points:

• The JWT specification is specifically designed only for very short-live tokens (~5 minute or less). Sessions

lazaronixon

<%= form_with(model: billboard) do |form| %>
  <%= tag.div class: "dropzone", data: { controller: "dropzone", dropzone_param_name_value: "billboard[images][]", dropzone_url_value: rails_direct_uploads_url, dropzone_accepted_files_value: "image/*", dropzone_max_files_value: 3, dropzone_max_filesize_value: 0.300 } do %>
    <div class="dz-default dz-message flex flex-col items-center">
      <%= image_tag "upload.svg", size: 28, class: "colorize-black", aria: { hidden: true } %>
      <h5 class="font-semibold mbs-4">Drop files here or click to upload.</h5>
      <p class="text-sm text-subtle">Upload up to 10 files.</p>
    </div>
  <% end %>

  <div class="inline-flex items-center mbs-2 mie-1">

Swizec

const official = require("gatsby-remark-embedder/dist/transformers/Twitter")

const Twitter = require("twitter-lite")

// Memoized twitter client instance
let twitterClient = null
async function getAppClient() {
  if (twitterClient) {
    return twitterClient
  }

dhh

/*
  ERB template chunk from The Feed's display of emails:

  <section class="postings postings--feed-style" id="postings"
      data-controller="pagination" data-pagination-root-margin-value="40px">
    <%= render partial: "postings/snippet", collection: @page.records, as: :posting, cached: true %>

    <%= link_to(spinner_tag, url_for(page: @page.next_param),
          class: "pagination-link", data: { pagination_target: "nextPageLink", preload: @page.first? }) unless @page.last? %>
  </section>