July 2018
Intermediate to advanced
354 pages
8h 51m
English
Content preview from Progressive Web Application Development by Example
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PWA features
Don't mistake PWAs as a specific technology. It is more of a marketing term describing the usage of modern platform features to provide a certain quality of experience. Without good user experience, the technology does not matter.
The Chrome team has identified four experience factors a PWA should offer:
- Fast
- Reliable
- Engaging
- Integrated
Research has shown that 53% of users will abandon a site if it takes longer than 3 seconds to load. Service worker caching makes page load time almost instant, but it cannot make animations faster. This requires knowledge of CSS animations and possibly JavaScript.
Applications that stutter or jump around the screen are said to be janky. If you have ever loaded a web page, for example, almost ...
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