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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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Toc

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

Setting up our server

With our templating system working, let's go ahead and hook all of this up to our server. Instead of now responding with a simple message of A okay!, we will respond with our template all put together. We can do this easily by running the following code:

stream.respond({
'content-type': 'text/html',
':status': 200
});
const file = fs.createReadStream('./template/main.html');
const tStream = new LoopingStream({
dir: templateDirectory,
vars : { //removed for readability }
},
loopAmount : 2
})
file.pipe(tStream).pipe(stream);
});

This should look almost exactly like our test harness. If we now head to https://localhost:50000, we should see a very basic HTML page, but we have our templated file created! If we now head into the development tools and look at the sources...

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