July 2018
Intermediate to advanced
354 pages
8h 51m
English
Content preview from Progressive Web Application Development by Example
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Running Lighthouse as a command-line utility
I really enjoy the ability to execute Lighthouse as a node module. The Lighthouse node module has a dependency on Chrome Launcher (https://www.npmjs.com/package/chrome-launcher), which will open an instance of Chrome to execute the test.
This means the machine executing Lighthouse should have Chrome installed. The tool uses a full instance of Chrome because it needs to render the page and use the Developer tools to emulate different modes.
Because Lighthouse is a node module, you need to install it using either npm or yarn. Like the other tools, I recommend installing it globally:
>npm install -g Lighthouse
You can run a full audit right from the command line by executing Lighthouse followed by ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.