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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

Chrome – an in-depth look at the Performance tab

As stated before, except for a select few tools inside Firefox, Chrome has become widely ubiquitous as the browser of choice for users and developers. For developers, this can be in large part thanks to its wonderful developer tools. The following sections are going to take a look at three critical tools that are important to any developer when designing web applications. We will start with the performance tool.

This tool allows us to run performance tests while our application is running. This is great if we want to see how our application behaves when certain things are done. For example, we can profile our application's launch state and see where possible bottlenecks are located. Or, when user interaction happens, such as a submit on a form, we can see the call hierarchy that we go through to post the information...

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