Chris Lusted ChrisLusted

My summary of https://www.youtube.com/watch?v=IqrwPVtSHZI

TL;DR:

Rails has a library, ActiveSupport, which adds methods to Ruby core classes. One of those methods is String#blank?, which returns a boolean (sometimes I miss this convention in Rust, the ?) if the whole string is whitespace or not. It looks like this: https://github.com/rails/rails/blob/b3eac823006eb6a346f88793aabef28a6d4f928c/activesupport/lib/active_support/core_ext/object/blank.rb#L99-L117

It's pretty slow. So Discourse (which you may know from {users,internals}.rust-lang.org) uses the fast_blank gem, which provides this method via a C implementation instead. It looks like this: https://github.com/SamSaffron/fast_blank/blob/master/ext/fast_blank/fast_blank.c

For fun, Yehuda tried to re-write fast_blank in Rust. Which looks like this:

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

	var Col = require('react-bootstrap/lib/Col')
	var PageHeader = require('react-bootstrap/lib/PageHeader')
	var React = require('react')
	var Row = require('react-bootstrap/lib/Row')
	var {connect} = require('react-redux')
	var {reduxForm} = require('redux-form')

	var DateInput = require('./DateInput')
	var FormField = require('./FormField')
	var LoadingButton = require('./LoadingButton')

	How to Completely Remove Android Studio


	Execute these commands from the terminal

	rm -Rf /Applications/Android\ Studio.app
	rm -Rf ~/Library/Preferences/AndroidStudio*
	rm ~/Library/Preferences/com.google.android.studio.plist
	rm -Rf ~/Library/Application\ Support/AndroidStudio*
	rm -Rf ~/Library/Logs/AndroidStudio*

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
	<script src="https://code.jquery.com/jquery-1.11.1.min.js"></script>
	<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
	<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/jquery.bootstrapvalidator/0.5.2/css/bootstrapValidator.min.css"/>
	<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/jquery.bootstrapvalidator/0.5.2/js/bootstrapValidator.min.js"></script>

	# Wouldn't it be great if you could have STI like functionality
	# without needing to encode strings of class names in the database?
	# Well today is your lucky day! Discriminable Model is here to help.
	#
	# Simply specify your models desired type column, and provide a block to
	# do the discrimination. If you want the whole STI-esque shebang of properly
	# typed finder methods you can supply an array of 'discriminate_types' that will
	# be used to apply an appropriate type.
	#
	# class MyModel < ActiveRecord::Base

	class Striper::SubscriptionCanceledEvent < Striper
	def process
	return unless user && log
	clear_customer_roles(user)
	UserMailer.unsubscribe_email(user).deliver
	end
	end

	# Compresses all .js and .css files under the assets path.
	namespace :deploy do
	# It is important that we execute this after :normalize_assets because
	# ngx_http_gzip_static_module recommends that compressed and uncompressed
	# variants have the same mtime. Note that gzip(1) sets the mtime of the
	# compressed file after the original one automatically.
	after :normalize_assets, :gzip_assets do
	on release_roles(fetch(:assets_roles)) do
	assets_path = release_path.join('public', fetch(:assets_prefix))
	within assets_path do

	## From Lynda.com course 'RSpec Testing Framework with Ruby'

	describe 'Expectation Matchers' do

	describe 'equivalence matchers' do

	it 'will match loose equality with #eq' do
	a = "2 cats"
	b = "2 cats"
	expect(a).to eq(b)