Book Image

Mobile Web Performance Optimization

By : S. S. Niranga
Book Image

Mobile Web Performance Optimization

By: S. S. Niranga

Overview of this book

With users increasingly accessing the web on mobile devices, it’s crucial to make sure your website is built to seamlessly fit this radical change in user behavior. Mobile Web Performance Optimization is designed to help you do exactly that – it’s been created to help you build fast, and mobile-user-friendly websites and applications. Featuring guidance through a range of techniques and tools essential to modern mobile development, this accessible guide will make sure you’re delivering a seamless and intuitive experience for your website’s users. Begin by exploring the fundamental components of mobile web design and website optimization, before learning how to put the concepts into practice. Featuring cross-platform solutions, insights on developing lightweight yet robust UI, and insights on how to successfully manage data, this application development book takes you through every stage in the development process – so you can be confident that you’re asking the right questions and using the best tools in the most effective way. By the end, you’ll understand implicitly what it means to ‘build for performance’- you’ll be a more confident developer, capable of building projects that adapt to a changing world.
Table of Contents (14 chapters)
Mobile Web Performance Optimization
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

The Google Chrome emulator


We have already discussed a few tools that we can use in Chrome's Developer Toolbar to test a website's performance. Now I am going to discuss how we can use the device mode in Developer Toolbar. The benefits of this feature are that we can use our browser's viewport as a device emulator, and we can test our website's responsiveness.

To turn on the device mode, open Developer Toolbar and click on the toggle device mode icon. When the mode is activated, the icon turns blue and the viewport will transform into an emulator.

You can use Chrome's DevTools device mode to:

  • Check the responsive design on different screen sizes and resolutions including retina displays

  • Inspect, edit, and visualize CSS media queries

  • Simulate the device input for orientation, touch, and geolocation

  • Enhance your current debugging workflow by combining the existing DevTools with the device mode

As I mentioned earlier, using the preset, you can easily switch to any device that is in the list.

Each preset...