PacktPub – Web Development Secrets Revealed – Critical Rendering Path, HTTP, AJAX, and More [Video]

PacktPub – Web Development Secrets Revealed – Critical Rendering Path, HTTP, AJAX, and More [Video]
English | Tutorial | Size: 9.85 GB

In this course, you will learn about the Critical Rendering Path. This refers to the set of steps browsers must take to fetch and then convert HTML, CSS, and JavaScript into living, breathing websites. From there, you will start exploring and experimenting with tools to measure performance. You will learn simple, yet very powerful strategies to deliver the first pixels to the screen as early as possible.

Knowledge of the CRP is incredibly useful for understanding how a site’s performance can be improved. There are various stages to the CRP, such as constructing the DOM, constructing the CSSOM, running JavaScript, creating the Render Tree, generating the layout, and finally painting pixels to the screen. As you can see, this covers a whole bunch of interesting material.

We will dig deeper in every lecture, by learning about things such as HTTP, TCP, data packets, render-blocking resources, and a whole bunch more! This course has many bonus lectures that will extend your knowledge base and test your skills.

Through practical examples, this course helps you understand the CRP piece by piece. We will use the latest and best features of JavaScript and browsers (such as the new Fetch API) along the way so you can stay ahead of the pack.

By the end of this course, you will be able to “speak” CRP by gaining an understanding of how to fetch data from a server and then get that data to your user as quickly as pos
What You Will Learn

Understand the DOM, CSSOM, Render Tree, and Layout
Master HTTP, HTTP/2, and AJAX
Learn where to write your JavaScript for optimized performance
Master the Critical Rendering Path
Learn to write your own Polyfill
Learn how to optimize any website for speed by writing better code

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