Search results for "react concurrent mode":

Cracking the Concurrent Mode
React Advanced Conference 2021React Advanced Conference 2021
30 min
Cracking the Concurrent Mode
Sudhanshu Yadav discusses the incremental concurrent feature in React 18 and the need for concurrent mode to provide a better user experience. Time slicing is the key pattern enabling concurrent features. Background rendering and unit of work are used to achieve asynchronous rendering and eventual consistency. Concurrent mode introduces a new pattern called differing for immediate rendering and adjusting based on available resources. React provides APIs for deferred updates and transitions. Implementing concurrent mode APIs can be complex, but it offers benefits like avoiding update starvation and reusing work. Scheduling and slots are used to control execution and dynamic FPS control. Handling multiple transitions can be challenging, but the React 18 working group discussions provide insights into the team's efforts to improve the user experience.
Getting Started with Suspense and Concurrent Rendering in React
React Summit 2020React Summit 2020
125 min
Getting Started with Suspense and Concurrent Rendering in React
Featured Workshop
Maurice de Beijer
Maurice de Beijer
React keeps on evolving and making hard things easier for the average developer.
One case, where React was not particularly hard but very repetitive, is working with AJAX request. There is always the trinity of loading, success and possible error states that had to be handled each time. But no more as the `<Suspense />` component makes life much easier.
Another case is performance of larger and complex applications. Usually React is fast enough but with a large application rendering components can conflict with user interactions. Concurrent rendering will, mostly automatically, take care of this.
You will learn all about using <Suspense />, showing loading indicators and handling errors. You will see how easy it is to get started with concurrent rendering. You will make suspense even more capable combining it with concurrent rendering, the `useTransition()` hook and the <SuspenseList /> component.
Inside Fiber: An Overview of React's Reconciliation Algorithm
React Summit Remote Edition 2021React Summit Remote Edition 2021
20 min
Inside Fiber: An Overview of React's Reconciliation Algorithm
React Fiber is a reconciliation algorithm introduced in React 16 to address laggy input fields and heavy rendering. The old stack reconciler caused a laggy experience by re-rendering the entire subtree immediately. React Fiber solves this by breaking work into incremental units and assigning priorities. It introduces concurrent mode to make apps responsive and adaptable. The useDeferredValue hook is commonly used to keep the interface responsive by rendering components immediately and others at a later time.
Wait, React Is Multi-Threaded?
React Day Berlin 2022React Day Berlin 2022
22 min
Wait, React Is Multi-Threaded?
Top Content
This Talk explores the use of web workers in React to improve user experience and performance. It discusses the limitations of JavaScript rendering and how web workers can offload tasks to separate threads. The Talk also highlights the benefits of using concurrent mode in React and introduces the UseWebWorkerHook library for simplifying the creation of web workers. It emphasizes the considerations when using web workers and concludes with a mention of Postman's hiring and new feature release.
Staying Safe in a Concurrent World
React Advanced Conference 2022React Advanced Conference 2022
22 min
Staying Safe in a Concurrent World
This talk explores the implications of the new concurrent features in React 18 and how they impact developers. It discusses the core premise of React and the importance of pure function components. The talk also addresses misconceptions about React's rendering process and the prevention of tearing in applications. Additionally, it highlights the reconciliation and commit phases in React and the challenges of dependency management in state management libraries.
Concurrent React Made Easy
React Advanced Conference 2023React Advanced Conference 2023
23 min
Concurrent React Made Easy
Watch video: Concurrent React Made Easy
Today's Talk introduces concurrent React and highlights the importance of fast and slow updates in user interfaces. It explains how concurrent rendering improves UI performance by allowing fast updates to proceed without being blocked by slow updates. The concept of assigning priorities to renders is discussed, with high priority renders being synchronous and low priority renders being interruptible. The Talk also mentions the benefits of using concurrent features in navigation and list filtering. Overall, concurrent React enhances rendering with interruptibility and prioritization, making the application feel faster and more responsive.
Concurrent Rendering Adventures in React 18
React Advanced Conference 2021React Advanced Conference 2021
132 min
Concurrent Rendering Adventures in React 18
Top Content
Featured WorkshopFree
Maurice de Beijer
Maurice de Beijer
With the release of React 18 we finally get the long awaited concurrent rendering. But how is that going to affect your application? What are the benefits of concurrent rendering in React? What do you need to do to switch to concurrent rendering when you upgrade to React 18? And what if you don’t want or can’t use concurrent rendering yet?

There are some behavior changes you need to be aware of! In this workshop we will cover all of those subjects and more.

Join me with your laptop in this interactive workshop. You will see how easy it is to switch to concurrent rendering in your React application. You will learn all about concurrent rendering, SuspenseList, the startTransition API and more.
Deep Diving on Concurrent React
React Advanced Conference 2022React Advanced Conference 2022
29 min
Deep Diving on Concurrent React
The Talk discussed Concurrent React and its impact on app performance, particularly in relation to long tasks on the main thread. It explored parallelism with workers and the challenges of WebAssembly for UI tasks. The concepts of concurrency, scheduling, and rendering were covered, along with techniques for optimizing performance and tackling wasted renders. The Talk also highlighted the benefits of hydration improvements and the new profiler in Concurrent React, and mentioned future enhancements such as React fetch and native scheduling primitives. The importance of understanding React internals and correlating performance metrics with business metrics was emphasized.
Road to a Better UX with Suspense and Concurrent UI
React Summit Remote Edition 2021React Summit Remote Edition 2021
9 min
Road to a Better UX with Suspense and Concurrent UI
This talk explores how React Suspense and Concurrent mode can enhance the user experience by controlling loading areas, prefetching data, and reducing loading time. It demonstrates how UseTransition can remove unnecessary loaders by skipping the loading state if data arrives within a specified time. The speaker advises using these experimental features in personal projects rather than enterprise applications. The talk concludes with an invitation to join the journey at Postman and thanks to the organizers, sponsors, speakers, and audience for making the conference a success.
Staying Safe In a Concurrent World
React Day Berlin 2022React Day Berlin 2022
30 min
Staying Safe In a Concurrent World
The talk discusses the ramifications of the new concurrent features in React and the misconceptions around the rendering model. It explores the changes in the rendering process and the need to handle state carefully. The talk also highlights the challenges in managing communication with the outside world and the recommended libraries for synchronization. It mentions the benefits of using concurrent mode in existing frameworks and the difficulties in building demos and enforcing immutability. Finally, it emphasizes the benefits of concurrent mode for heavy components.
React Concurrency, Explained
React Summit 2023React Summit 2023
23 min
React Concurrency, Explained
Top Content
Watch video: React Concurrency, Explained
React 18's concurrent rendering, specifically the useTransition hook, optimizes app performance by allowing non-urgent updates to be processed without freezing the UI. However, there are drawbacks such as longer processing time for non-urgent updates and increased CPU usage. The useTransition hook works similarly to throttling or bouncing, making it useful for addressing performance issues caused by multiple small components. Libraries like React Query may require the use of alternative APIs to handle urgent and non-urgent updates effectively.
React Concurrency × Core Web Vitals
React Summit US 2023React Summit US 2023
26 min
React Concurrency × Core Web Vitals
Watch video: React Concurrency × Core Web Vitals
The Talk discusses the InteractionToNextPaint metric, which measures the speed of clicks or keyboard inputs on a page. It explores the impact of slow interactions and slow React renders on user experience. The Talk also covers optimization techniques for React rendering, including the use of concurrent features and the StartTransition function. React 18 introduces changes to the rendering process that improve interaction speed. Concurrent rendering and suspense boundaries are highlighted as features that can enhance the performance of React apps.
Don’t Try This at Home: Synchronous I/O in Node.js
Node Congress 2021Node Congress 2021
32 min
Don’t Try This at Home: Synchronous I/O in Node.js
This Talk explores synchronous IO in Node.js and the advantages of asynchronous IO. It discusses exceptions to synchronous IO and approaches to achieving synchronous IO in Node.js, including using WASI and native add-ons. The Talk also covers mixing workers with atomics for synchronous IO and embedding Node.js to create a synchronous worker. Additionally, it touches on TypeScript migration, optimizations in Node.js, and experiences and advice on contributing to Node.js.
Mastering Node.js Test Runner
TestJS Summit 2023TestJS Summit 2023
78 min
Mastering Node.js Test Runner
Workshop
Marco Ippolito
Marco Ippolito
Node.js test runner is modern, fast, and doesn't require additional libraries, but understanding and using it well can be tricky. You will learn how to use Node.js test runner to its full potential. We'll show you how it compares to other tools, how to set it up, and how to run your tests effectively. During the workshop, we'll do exercises to help you get comfortable with filtering, using native assertions, running tests in parallel, using CLI, and more. We'll also talk about working with TypeScript, making custom reports, and code coverage.
Exploring Node.js Test Runner
TestJS Summit 2023TestJS Summit 2023
28 min
Exploring Node.js Test Runner
Today's Talk introduces the new Node.js test runner and its features, including filtering, sub-testing, and reporting. It also discusses executing and writing tests in Node.js, as well as the features of the Node.js testing library. The advantages of the Node.js test runner include the ability to create custom test reporters and use TypeScript. However, there are limitations such as a small ecosystem and limited libraries. Upcoming features include test planning, faster test running, and continuous evolution. The Q&A session covers topics like test runner speed, reporters, sharding, and parallelization.
The Subtle Art of "Subtle Loading"!
React Summit 2022React Summit 2022
10 min
The Subtle Art of "Subtle Loading"!
This Talk explores the concept of subtle loading in software development, focusing on techniques to provide a fast and seamless user experience. Tips include avoiding waterfall loading, optimizing loading sequences, and handling loading scenarios for users on faster connections. The use of React 18 APIs, such as start transition, is recommended to achieve an optimistic loading experience. Overall, the Talk emphasizes the importance of improving user experience through subtle loading techniques.
Back to the basics
Node Congress 2022Node Congress 2022
128 min
Back to the basics
WorkshopFree
Guillermo Gutierrez Almazor
Guillermo Gutierrez Almazor
“You’ll never believe where objects come from in JavaScript.”
“These 10 languages are worse than JavaScript in asynchronous programming.”
Let’s explore some aspects of JavaScript that you might take for granted in the clickbaitest nodecongress.com workshop.
To attend this workshop you only need to be able to write and run NodeJS code on your computer. Both junior and senior developers are welcome.
Objects are from Mars, functions are from Venus
Let’s deep-dive into the ins and outs of objects and then zoom out to see modules from a different perspective. How many ways are there to create objects? Are they all that useful? When should you consider using them?
If you’re now thinking “who cares?“, then this workshop is probably for you.
Asynchronous JavaScript: the good? parts
Let’s have an honest conversation.
I mean… why, oh why, do we need to bear with all this BS? My guess is that it depends on perspective too. Let’s first assume a hard truth about it: it could be worse… then maybe we can start seeing the not-so-bad-even-great features of JavaScript regarding non-blocking programs.
We Don’t Know How React State Hooks Work
React Advanced Conference 2021React Advanced Conference 2021
28 min
We Don’t Know How React State Hooks Work
This talk explores how useState works under the hood and why it's important to understand. It addresses the common confusion around the callback to setState and provides insights gained from exploring React hooks source code. Knowing how useState works is important for learning patterns, debugging, and gaining confidence in our code. React manages the current value of hooks in a linked list and performs updates sequentially. React optimizes rendering by caching computations and performing shallow renders when the state doesn't change.
Brace Your React, New Core Web Vitals are Coming
React Day Berlin 2023React Day Berlin 2023
30 min
Brace Your React, New Core Web Vitals are Coming
Watch video: Brace Your React, New Core Web Vitals are Coming
The Talk discusses the NextPaint metric, a new performance metric introduced by Google that measures the speed of clicks or keyboard input on a page. It explores how React rendering can impact the NextPaint metric and offers optimization techniques such as using the useTransition hook in React 18. The Talk also covers the changes introduced in React 18's rendering process, the impact of wrapping with suspense, and the replacement of the First Input Delay metric with the interaction to the next page. The limitations of useTransition and general React performance optimization strategies are also discussed.
The Clinic.js Workshop
JSNation 2022JSNation 2022
71 min
The Clinic.js Workshop
Workshop
Rafael Gonzaga
Rafael Gonzaga
Learn the ways of the clinic suite of tools, which help you detect performance issues in your Node.js applications. This workshop walks you through a number of examples, and the knowledge required to do benchmarking and debug I/O and Event Loop issues.
Effective Performance Testing to your Server with Autocannon
TestJS Summit 2021TestJS Summit 2021
36 min
Effective Performance Testing to your Server with Autocannon
Top Content
Tamar is an experienced code writer and architect with expertise in Node.js. Performance testing can be confusing, but understanding terms like throughput and the 99th percentile is crucial. The 99th percentile is important for making commitments and ensuring customer satisfaction. AutoCanon is a powerful tool for simulating requests and analyzing server performance. It can be installed globally or used as a library in Node.js. Autocannon is preferred over Gatling for performance testing and can be integrated with end-to-end tests in Cypress.