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High Performance JavaScript
Dušan Dimitrić edited this page Oct 10, 2016
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![High Performance JavaScript] (http://akamaicovers.oreilly.com/images/9780596802806/lrg.jpg "High Performance JavaScript")
It's questionable how much this is this book still of value. With newer browsers/JS Engines and their optimizations a lot of the techniques in this book are unnecessary and even potentially harmful to the performance of the web app. But, yet, this book is a great history book on JavaScript and the struggles the developers were facing in the past. This can give the reader a broader perspective and understanding of the JavaScript ecosystem as a whole and the way and reasons it has evolved the way it has.
- pg. 3 - Always put the
<script>tags at the bottom of the<body>tag. - pg. 4 - Never put inline JavaScript after a
<link>element referencing an external stylesheet. - pg. 4 - Concatenate all
.jsfiles in one file using an offline build tool to reduce the number of HTTP calls. (This is not a good practice in HTTP2.0 though.) - pg. 6 - In Chrome, the
deferattribute inside the<script>element doesn't do anything anymore. Just forget about it. - pg. 6/7 - Adding a
<script>through the DOM interface.