Name: アシュリー・ウィリアムズのJavaScriptの旅｜JSConf EU 2019 (JavaScript's Journey to the Edge by Ashley Williams | JSConf EU 2019)
Uploaded: 2021-01-14T10:25:38.000Z
Duration: 29 min 23 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

>> Hello, everyone, welcome to my awesome talk.

法助動詞 B1

You may know me as AB.Dubs from the internet, I'm sorry!

The first thing is it about is performance.

More importantly, performance that makes things more accessible, and, unlike a lot of the

talks that we've seen at this conference, this talk is also about infrastructure.

Can I get a shout out from any of the ops people in the room?

I want this talk to be a little bit about how the internet works, and potentially, how

And so this talk is called "JavaScript's journey to the edge" and so there's a little bit of

Perhaps you're more familiar with these journeys if you're from the United States, but I just

wanted to say a small thing, as this is JSConf about how important this conference has been

I spoke at the last Reject JS in 2015, and I was the second-to-last reject only to Marika

It was one of the most amazing conferences.

The next day I went to JSConf EU and saw someone wearing a shirt with my face on it which was

This was from a musical number they had done using quotes from a previous talks of mine,

and they did that again in 2017, or 2016, with the classic "people got mad" which was

an auto tune of my voice talking about how people get mad if you put all of your code

But then I spoke at JSConf EU in 2017 and I wore an Antifa shirt.

Man, I have so many friends at this conference.

The last time I was here was last year where I did an impromptu Rust and WebAssembly workshop

for 100 people from the Mozilla booth, and it's cool.

This conference is super awesome, so can we give it a round of applause?

But this talk is obviously not about my journey, this talk is about JavaScript's journey, so

I'm about to show you some very scientific timelines that I made using Wikipedia and

JavaScript has had a fascinating history, and people talk about history, about this

one being the tenth one, and Node being announced in 2009.

We've seen a lot of development from JavaScript, and we've seen it develop really, really quickly,

and I think it's kind of developed in one particular way, so here we see the first website

in 1991, and then we end with Wasm up in 2017.

But, we saw the appearance of a fair number of things, including a lot of browser engines,

And I think one of the most pivotal things in this timeline that people don't usually

see is the emergence much Google Maps in 2004 really motivated people to see what you could

do inside of a website, and made it so that we started developing all of these things

that you could do browser computations so much faster.

So if we put these graphs together and take a look at this, what is happening is that

the speed of computation in the browser is just exponentially growing, and that is so

awesome, and I'm a big WebAssembly fan, I'm super here for this.

However, because the browser has become such a computationally awesome agent, we've run

And fundamentally, this comes back to the idea of accessibility, and it's spelled wrong

here, but it really comes down to the fact that what we are talking about is the ability

Mani in his talk the Cost of JavaScript in 2018 said the web is bloated by user experience.

So how many people here have ever checked out HTTP Archive?

If you haven't, it's amazing, and you could loan at these numbers.

What this graph is showing is the median size of desktop and mobile applications with the

JavaScript bytes that are being downloaded to the device, and we have seen a 353 per

cent increase for desktop, and it's worse for mobile - 577 per cent growth in how much

It's cool because the browser can take that stuff and use it really fast.

Moving those bytes over the wire takes a lot of time.

So, on average, remember, this is on average, there are people who are on the really bad

end of this, mobile loading time for an average website takes nine seconds.

So this is going to be part of the problem we are going to solve in my talk today.

So, my intro did not entirely say this but I'm a systems engineer for a big orange cloud,

not to be confused with a big orange website which I'm not a fan of, or SoundCloud which

I work for Cloudflare, I know it doesn't look super big here.

Cloudflare is not super good at actually defining what it does, but the thing you definitely

don't call it is a DNS company, because also, I mean, no-one likes DNS.

But we call ourselves an infrastructure company, and sometimes, I describe Cloudflare as a

hardware company, and that is because our primary asset is this, and this is a map of

180 data centres and growing all over the world.

And so, this set of data centres contains something which is called "the Edge", and

It doesn't make any sense to most people.

Someone said there's a wrestler called the Edge.

To talk to you about what the Edge is, we will talk about the classic dichotomies in

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アシュリー・ウィリアムズのJavaScriptの旅｜JSConf EU 2019 (JavaScript's Journey to the Edge by Ashley Williams | JSConf EU 2019)

literally

context

awesome

genuinely