jelbourn

// Overlays one color on top of another and returns the resulting color.
// This is used to determine contrast ratio for two colors with partial opacity.
// See http://en.wikipedia.org/wiki/Alpha_compositing#Alpha_blending
@function alpha-blend($overlay, $base) {
  $overlayAlpha: alpha($overlay);
  $baseAlpha: alpha($base);

  // If the overlaid color is completely opaque, then the result is just going to be that color.
  @if $overlayAlpha >= 1 {
    @return $overlay;

azenla

/// Dart is built around a timer, which basically schedules functions in a queue.
/// The Future class is essentially just sugar on top of the event loop.
/// To help people understand what the event loop actually does, I have written code which implements the event loop.
/// See https://www.dartlang.org/articles/event-loop/ for more information.

import "dart:async";

class EventLoop {
  /// Function Queue.
  static final List<Function> queue = []; 

shamil

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

patrickhammond

Here is a high level overview for what you need to do to get most of an Android environment setup and maintained.

Prerequisites (for Homebrew at a minimum, lots of other tools need these too):

• XCode is installed (via the App Store)
• XCode command line tools are installed (xcode-select --install will prompt up a dialog)
• Java

Install Homebrew:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

adam-singer

#!/usr/bin/env bash

set +o xtrace
USER=$USER
PROJECT=dart-compute-project
INSTANCE_NAME=dart-compute
TAGS=dart
MACHINE_TYPE=f1-micro
NETWORK=default
IP=ephemeral

munificent

Spent a bunch of time talking to Nathan, Siggy, and Kevin about how to handle pub serve with stuff outside of web/. Our goals are:

1. Root-relative URLs inside web/, test/, example/, and even things like subdirectories of example/ should be supported. This means that the root directory being served needs to be constrained to those.

   We can't require the user to hit localhost:8080/example/example1/foo.html because it would break a root-relative URL in foo.html.

2. More than one of these directories needs to be servable simultaneously. If you have to shut down the server and restart it (which entails rebuilding

munificent

Pub has two commands for working with transformers, build and serve. Both of those currently are hardcoded to only see stuff in your package's web/, asset/, and lib/ directories. We've been wanting to have support for test/, example, and others for a while (see #14673 and #15924). This sketches out what I'm thinking to handle this. Feedback is welcome!

The basic idea is that build and serve will be able to see of these directories: asset/, benchmark/, bin/, example/, test/, and web/. Transformers will be able to run on assets in any of those.

The build/ directory

Right now, pub build creates a build/ directory containing the output of the build process. That directory only contains the outputs whose path is within web/. If we start building tests and examples into there, stuff could start colliding.

So the first change is that we'll reorganize the build/ directory to match your package. Outputs within web/ will

t-io

#!/bin/sh
echo Install all AppStore Apps at first!
# no solution to automate AppStore installs
read -p "Press any key to continue... " -n1 -s
echo  '\n'

echo Install and Set San Francisco as System Font
ruby -e "$(curl -fsSL https://raw.github.com/wellsriley/YosemiteSanFranciscoFont/master/install)"
echo Install Homebrew, Postgres, wget and cask
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

ebidel

Web Components Resources

Specs / standardization

W3C Introduction to Web Components - explainer/overview of the technologies

• Custom Elements
• HTML Imports
• Shadow DOM
• CSS Scoping Module