soderlind

1) Install cloudflared using homebrew:

brew install cloudflare/cloudflare/cloudflared

2) Create /usr/local/etc/cloudflared/config.yaml, with the following content

proxy-dns: true
proxy-dns-upstream:
  - https://1.1.1.1/dns-query
  - https://1.0.0.1/dns-query

JMPerez

const observer = new PerformanceObserver((list) => {
  for (const entry of list.getEntries()) {
    // `name` will be either 'first-paint' or 'first-contentful-paint'.
    const metricName = entry.name;
    const time = Math.round(entry.startTime + entry.duration);

    ga('send', 'event', {
      eventCategory: 'Performance Metrics',
      eventAction: metricName,
      eventValue: time,

augbog

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

1. Take the download.sh file and put it into a directory where you want the files to be saved.
2. cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
3. Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Restuta

Below is the list of modern JS frameworks and almost frameworks – React, Vue, Angular, Ember and others.

All files were downloaded from https://cdnjs.com and named accordingly. Output from ls command is stripped out (irrelevant stuff)

As-is (minified)

$ ls -lhS
566K Jan 4 22:03 angular2.min.js

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

chantastic

Hi Nicholas,

I saw you tweet about JSX yesterday. It seemed like the discussion devolved pretty quickly but I wanted to share our experience over the last year. I understand your concerns. I've made similar remarks about JSX. When we started using it Planning Center, I led the charge to write React without it. I don't imagine I'd have much to say that you haven't considered but, if it's helpful, here's a pattern that changed my opinion:

The idea that "React is the V in MVC" is disingenuous. It's a good pitch but, for many of us, it feels like in invitation to repeat our history of coupled views. In practice, React is the V and the C. Dan Abramov describes the division as Smart and Dumb Components. At our office, we call them stateless and container components (view-controllers if we're Flux). The idea is pretty simple: components can't

arunoda

Installing SSHPASS

SSHPass is a tiny utility, which allows you to provide the ssh password without using the prompt. This will very helpful for scripting. SSHPass is not good to use in multi-user environment. If you use SSHPass on your development machine, it don't do anything evil.

Installing on Ubuntu

apt-get install sshpass

Installing on OS X

medialwerk

require 'rake'
require Compass::AppIntegration::Rails.root.to_s + '/lib/compass/css_splitter'

namespace :css do  
  desc 'split css files'
  task :split do
    infile = ENV['infile'] || raise("missing infile")
    outdir = ENV['outdir'] || File.dirname(infile)
    max_selectors = ENV['max_selectors'] || 4095

robbyrussell

# Was asked how I keep  my zshrc config sync'd between my computers with Dropbox

# Add a new directory in your Dropbox (or use an existing one)
mkdir -p ~/Dropbox/ohmyzsh

# move existing file to Dropbox
mv ~/.zshrc ~/Dropbox/ohmyzsh/zshrc

# symlink file back to your local directory
ln -s ~/Dropbox/ohmyzsh/zshrc ~/.zshrc