Hi!
Let's talk today about ECMAScript 2018, JavaScript event loop and Puppeteer.
I'm Anatol and you are watching the Good Parts of the Frontend development.
If this is your first time here, you wanna learn Frontend and JavaScript, start now by
subscribing and don't forget to turn on the subtitles.
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The feature set of ECMAScript 2018 was finalized during the latest TC39 meeting in January.
It includes: - Async iterators and generators
- Object rest and spread properties - Promise.prototype.finally
- Various RegExp features Every single one of the new ES2018 language
features is available by default in V8 v6.4 and Chrome 64.
And by the way TC39 now has got own official logo
The WebKit team from Apple have released a Speedometer 2.0: a Benchmark for Modern Webapp
Responsiveness.
Now it supports mostly all modern JavaScript frameworks and libraries, understands ES2015
syntax, TypeScript and Babel.
Last December Nicolás Bevacqua gave a presentation about Modular Design - at Code Europe.
This blog post namely "A Guide to Modular Design Thinking" contains a transcript of
that presentation.
Have a look.
Tim Nolet has posted an article with a provocative title "Running untrusted JavaScript as a SaaS
is hard".
The services like JSFiddle or CodePen face with such challenge.The author has proposed
a multi-layered approach to solve the untrusted JavaScript code issue.
So, running untrusted code is a security nightmare, but it can be done.
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If you're using React, you've probably heard about High Order Components at least
once.
In this short tutorial you can learn about How to write a High Order Components in 3
easy steps.
Let me grab your attention to Jake Archibald's talk "In the Loop".
This report is one of the best event loop's illustration I have ever seen.
Want to get your head around CSS Grid once and for all?
Enjoy this 7 minute introduction with code and diagrams
Dan Abramov presented "Future-Fetcher" at JS Conf Asia.
New concepts are coming directly into React that could make Redux obsolete.
Wes Bos has prepared a short demo of the "Context API" usage.
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Gergely Nemeth has posted an article "Building Secure JavaScript Applications".
In this article he shares some tips and best practices, covering XSS, CSRF, passwords,
and auth.
"The "Blur Up" Technique for Loading Background Images".
Here, Emil Björklund explores a performance technique using one of the more forgotten
filter effects - the filter function - as well as recreating it with SVG.
He adopts a transition with blur effect for progressively-enhanced background images.
Right now, only WebKit can animate the sharper image in.
If you're looking for a perfect tool for testing your API, then pay attention to an article
"7 Helpful HTTP Tools Worth Knowing About" by Kristopher Sandoval.
You'll find here the comparison within cURL, http-console, HTTPie, http-prompt, jq, Postman,
Paw and Insomnia.
The last but not least point for today is an article titled "Automatic visual diffing
with Puppeteer".
In this article Monica describes how to set up Puppeteer to automate both taking screenshots
of your project and comparing them.
The set of tools for this purpose consists of Mocha, Chai, Pixelmatch, Polyserve and
of course of Pappeteer itself.
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Thanks for watching and stay curious.
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