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Hands-On JavaScript High Performance

You're reading from   Hands-On JavaScript High Performance Build faster web apps using Node.js, Svelte.js, and WebAssembly

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Product type Paperback
Published in Feb 2020
Publisher Packt
ISBN-13 9781838821098
Length 376 pages
Edition 1st Edition
Languages
Tools
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Author (1):
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Justin Scherer Justin Scherer
Author Profile Icon Justin Scherer
Justin Scherer
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Table of Contents (15) Chapters Close

Preface 1. Tools for High Performance on the Web 2. Immutability versus Mutability - The Balance between Safety and Speed FREE CHAPTER 3. Vanilla Land - Looking at the Modern Web 4. Practical Example - A Look at Svelte and Being Vanilla 5. Switching Contexts - No DOM, Different Vanilla 6. Message Passing - Learning about the Different Types 7. Streams - Understanding Streams and Non-Blocking I/O 8. Data Formats - Looking at Different Data Types Other Than JSON 9. Practical Example - Building a Static Server 10. Workers - Learning about Dedicated and Shared Workers 11. Service Workers - Caching and Making Things Faster 12. Building and Deploying a Full Web Application 13. WebAssembly - A Brief Look into Native Code on the Web 14. Other Books You May Enjoy

Streams - Understanding Streams and Non-Blocking I/O

We have touched on almost all of the subjects that help us write highly performant code for the server with JavaScript. The two last topics that should be discussed are streams and data formats. While these two topics can go hand in hand (since most data formats are implemented through read/write streams), we will focus on streaming in this chapter.

Streaming gives us the capability to write systems that can process data without taking up a lot of working memory and without blocking the event queue. For those that have been reading this book sequentially, this may sound familiar to the concept of generators, and this is correct. We will focus on the four different types of streams that Node.js provides and that we can extend easily. From there, we will look at how we can combine streams and generators to process data with the...

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