Talks

In this talk we will look under the hood of SvelteJS and try to understand how it works.

In this talk Nicolò will show an alternative way of using Babel.

Roman will try to explain all interesting and vital points related to banners during this talk.

The modern web has become too complex and requires a lot of knowledge. Yuri will tell how to use JavaScript modules as well as technologies such as Babel, PostCSS, PostHTML, and hqjs to eliminate the construction of assembly lines and to be able to concentrate on business logic.

We are going to take an exciting journey through the cruel world of distributed systems to learn more about the technical challenges that live there. Finally, we are going to discuss what it takes to build a fast linearizable key/value store in Node.js.

Dmitry will talk about rendering problems, how you can solve this problem manually and automatically, and how to implement virtual rendering itself.

In this talk, Natalia will talk to you about some of the problems she helps design solutions for, as a frontend architect, and we will discuss some of the latest technology trends, ranging from micro frontends to serverless computing, to runtime imports, and their weight in our decisions.

The async pipe is boring! Understand the guts of Angulars change detection and why Zone.js is your biggest enemy. Learn the trick on template bindings, component rendering, and where you pay the biggest price. As the tip of the iceberg, you will learn how to identify and avoid blocking UIs by analyzing flame charts and leverage task scheduling. In the end, you will be able to build applications with zone-less performance even in a zone-full environment.

During this talk Diana wants to look at GraphQL from the perspective of a more general trend of going from fragmented data models, microservices, decoupling, and separation of concerns to more unified and centralized engineering organizations.

In this talk, we will learn why jsdom is not ok and what more reliable alternatives you can think of. And in practice we will see how Cypress.io is trying to reverse the approach to component testing.

The talk allows practicing developers to dive deeper into how React works and its architecture.

You will learn how using React Native, React Figma, Styled System and other technologies create multiplatform design systems described by a code.

Building PWA (Progressive Web App) with Mint: development from scratch, so you'll be familiar with major Mint — tools and approaches.

Micro frontends are gaining popularity in recent years due to the increase in complexity of frontend applications. We will take a look at how it can be done in 2020 using React, Kubernetes, and ES modules.

A presentation sized wrap up showing how to read the ECMAScript API and syntax notation.

ES6 added a built-in concept of modules to JavaScript in 2015, though uptake since then has been more gradual, it is the de-facto default for authoring new JS today. In this talk, Daniel will explain two new proposals in this space, making modules even more useful.

Webpack 5 has received a landmark innovation — module federation. Pavel will tell you how it works and how it will affect the web development industry and the creation of micro-frontends in particular.

In this talk, we will take a deep dive into both theory and practice of Core Web Vitals.

In this talk, you'll learn firsthand how to develop web applications for multiple screens, how to lock the keyboard (and why), and many other new features that the Web Platform gives developers.

The talk about WebAuthn, what it is, and its specialties.

In this session, we'll learn common pain points that customers experience way too frequently with web forms, how to solve them, and how to create an interface that excels at getting the information from the customer in a way that's friendly, accessible and obvious — helping conversion and business KPIs along the way.

An interview with Dan Abramov conducted by Natalia Tepluhina and Nataliya Karatkova. Dan will be asked questions about frontend, what Dan is working on now, plans and so much more. The interview will be in Russian.

In this workshop, we will discuss how to prepare to write a game. The process will use CodeSandbox, PixiJS, p2, Tiled, and small snippets for integration. The focus will be on architecture, which is how to tie it all together and prepare it for month-long game development.

In this workshop we will see in practice how Cypress.io is trying to revolutionize the approach to component testing.

Many developers experience problems with old browser support. The bundle is growing because of polyfills, etc. So, why should users of Chrome latest version wait long for an application to load? Differential Serving will help you to make bundle much lighter ;-)

Find out what awaits you in the next 4 days. The program committee will talk about schedule, interesting talks, and in what format they will be held. The team of organizers in turn will tell you how our platform works, where discussion zones will be held, how to connect to chat rooms, and where to ask questions.

Join the HolyJS wrap-up with the Program committee: we will discuss the most interesting talks and chatters as well as talks that should be returned after the conference.

In this workshop, we will discuss how to prepare to write a game. The process will use CodeSandbox, PixiJS, p2, Tiled, and small snippets for integration. The focus will be on architecture, which is how to tie it all together and prepare it for month-long game development.

How to make a music box using fantasy, a couple of npm-packages and React or maybe something else.

A short story about how MTS overtook the API market, why it is worth/not worth using auto-generated APIs and how this will help save a lot of time and effort.

During this session we will consider what type-directed emit is and how to use it, and also compare it with other types of reflection and code generation, we will dive into the features of API transpilers and find out what the disadvantages of this approach are.

Building PWA (Progressive Web App) with Mint: development from scratch, so you'll be familiar with major Mint — tools and approaches.

In this session, we'll learn common pain points that customers experience way too frequently with web forms, how to solve them, and how to create an interface that excels at getting the information from the customer in a way that's friendly, accessible and obvious — helping conversion and business KPIs along the way.

Vasiliy Vanchuk, Evgeny Kot, and Alexandra Kalinina will answer your questions about how to become a part of the Program committee and become a speaker at HolyJS. PC members will also tell about their numerous failures.

Semyon Levenson, Ivan Popelyshev, and Yaroslav Losev, under the guidance of Mikhail Bashurov and Artem Kobzar, will compete in the speed of answering questions about the world of JS.