Geoyi

How to install virtualenv:

Install pip first

sudo apt-get install python3-pip

Then install virtualenv using pip3

sudo pip3 install virtualenv 

vladikoff

#!/usr/bin/env sh

# Generate an AUTHORS file based on the output of git shortlog. It uses ABC
# order, strips out leading spaces and numbers, then filters out specific
# authors.

git shortlog -se \
  | perl -spe 's/^\s+\d+\s+//' \
  | sed -e '/^CommitSyncScript.*$/d' \
  > AUTHORS

newyankeecodeshop

Background

Recently I noticed that Safari 10 for Mac/iOS had achieved 100% support for ES6. With that in mind, I began to look at the browser landscape and see how thorough the support in the other browsers. Also, how does that compare to Babel and its core-js runtime. According to an ES6 compatability table, Chrome, Firefox, and IE Edge have all surpassed what the Babel transpiler can generate in conjunction with runtime polyfills. The Babel/core-js combination achieves 71% support for ES6, which is quite a bit lower than the latest browsers provide.

It made me ask the question, "Do we need to run the babel es2015 preset anymore?", at least if our target audience is using Chrome, Firefox, or Safari.

It's clear that, for now, we can't create a site or application that only serves ES6. That will exclude users of Internet Explorer and various older browsers running on older iOS and Android devices. For example, Safari on iOS 9 has pretty mediocre ES6 support.

marcoscaceres

DEPRECATED

I think most of this stuff is now depracted. Looks like C++ is the only realistic way to go for implementing WebIDL bindings in Gecko. That's unfortuante, because if you are a JS dev, learning C++ can be challenging (though worth while! it's a fun language.)

Implementing a JS-based WebIDL binding in Gecko

This provides a gentle introduction to implementing a WebIDL interface in JavaScript. Once you are done, you can refer to the MDN Wiki, to add more advanced things.

Before you start

We would encourage you to first build a simple prototype version of your API in JS. Going through the process of creating a WebIDL is fairly straight forward, but if you screw it up you will need to recreate a whole bunch of files, etc. As such, it's much easier to make sure you have your API in a good state before attempting the steps below.

PaulKinlan

#! /bin/bash

mkdir -p ./backgrounds


function get_google_device_art {
  local device=$1
  # Get the Google Device backgrounds
  curl "https://developer.android.com/distribute/marketing-tools/device-art-resources/$1/port_back.png" > "./backgrounds/$1_port_back.png"
  curl "https://developer.android.com/distribute/marketing-tools/device-art-resources/$1/port_fore.png" > "./backgrounds/$1_port_fore.png"

max-mapper

As a maintainer of native node add-on modules I have some questions about when and why NODE_MODULE_VERSION changes:

(@rvagg has anwered these in the comments below)

• does v8 use semver? how do you know when a v8 version breaks ABI compatibilility?
• is there a semantic meaning for v8 version numbers or is it arbitrary?
• who maintains this google doc I found? is it official?
• why is the latest entry from may in the v8 changelog? https://chromium.googlesource.com/v8/v8.git/+/master/ChangeLog
• how can you tell when all these future v8 versions will be stable? https://chromium.googlesource.com/v8/v8.git/+refs
• why must a node major version correspond to a specific v8 version? e.g. node v5 uses v8 4.6 and won't upgrade to 4.7

paulrouget

Document moved to: https://github.com/servo/servo/blob/master/HACKING_QUICKSTART.md

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

paulirish

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

avolochenko

import os
import sys
 
spark_home = os.environ.get('SPARK_HOME', None)
#if not spark_home:
#    raise ValueError('SPARK_HOME environment variable is not set')
sys.path.insert(0, os.path.join(spark_home, 'python'))
sys.path.insert(0, os.path.join(spark_home, 'python/lib/py4j-0.8.2.1-src.zip'))
execfile(os.path.join(spark_home, 'python/pyspark/shell.py'))