ilyazub

Note: I'm not involved in Prepack in any way — please correct me if I say anything incorrect below!

A few people have asked me if Prepack and Svelte are similar projects with similar goals. The answer is 'no, they're not', but let's take a moment to explore why.

What is Prepack?

Prepack describes itself as a 'partial evaluator for JavaScript'. What that means is that it will run your code in a specialised interpreter that, rather than having some effect on the world (like printing a message to the console), will track the effects that would have happened and express them more directly.

So for example if you give it this code...

Run Cisco Webex on 64-bit Ubuntu 16.04

With Audio and Screen Sharing Enabled

Enable support for 32-bit executables

Add the i386 architecture to the list of dpkg architectures :

sudo dpkg --add-architecture i386

type StringBool = "true"|"false";


interface AnyNumber { prev?: any, isZero: StringBool };
interface PositiveNumber { prev: any, isZero: "false" };

type IsZero<TNumber extends AnyNumber> = TNumber["isZero"];
type Next<TNumber extends AnyNumber> = { prev: TNumber, isZero: "false" };
type Prev<TNumber extends PositiveNumber> = TNumber["prev"];

Running nightmare on Amazon Linux

You may have thought of running nightmare on AWS Lambda. But before we can run it on Lambda, we need first to make it run on Amazon Linux.

Provision instance which replicates Lambda environment

According to AWS Documentation on Lambda Execution Environment and available Libraries we would need this AMI image with this alias amzn-ami-hvm-2016.03.3.x86_64-gp2. Keep in mind that AMI-image-id for this instance would be different in different regions (eg):

In eu-west-1 - ami-f9dd458a
In us-east-1 - ami-6869aa05

1. Copy m3u8 link

2. Run command

echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 50 $filename.mp4

	#!/usr/bin/env ruby

	def fib0(a)
	0.upto(a.size-1) { \|i\| a[i] += 1 }
	end

	def fib1(a)
	fib0(a)
	end

	[Desktop Entry]
	Version=1.0
	Name=Telegram Desktop
	Comment=Official desktop version of Telegram messaging app
	TryExec=/opt/Telegram/Telegram
	Exec=/opt/Telegram/Telegram -- %u
	Icon=telegram
	Terminal=false
	StartupWMClass=TelegramDesktop
	Type=Application

	{% for product in collection.products %}
	<a href="{{ product.url \| within: collection }}">
	{% assign image = product.featured_image %}
	<img src="{{ image.src \| img_url: '480x' }}" alt="{{ image.alt \| escape }}"
	srcset="
	{% if image.width > 640 %}{{ image.src \| img_url: '640x' }} 640w{% endif %}
	{% if image.width > 720 %},{{ image.src \| img_url: '720x' }} 720w{% endif %}
	{% if image.width > 900 %},{{ image.src \| img_url: '900x' }} 900w{% endif %}
	"
	sizes="(min-width: 960px) 450px, (min-width: 720px) 50vw, 100vw"

	<img class="slideshow__image slideshow__image--{{ block.id }} lazyload"
	src="{{ block.settings.image \| img_url: '300x' }}"
	data-src="{{ img_url }}"
	data-widths="[540, 720, 900, 1080, 1296, 1512, 1728, 1944, 2048]"
	data-aspectratio="{{ block.settings.image.aspect_ratio }}"
	data-sizes="auto"
	data-parent-fit="cover"
	alt="{{ block.settings.image.alt \| escape }}">

	https://developers.google.com/protocol-buffers/docs/encoding
	https://moz.com/blog/decoding-googles-referral-string-or-how-i-survived-secure-search
	https://moz.com/blog/inside-googles-ved-parameter
	https://github.com/beschulz/ved-decoder
	https://deedpolloffice.com/blog/articles/decoding-ved-parameter