JSCore on iOS

Lightning talk at Flipconf 2.0, Oct 2015.

Credits to @romaonthego for awesome code and inspiration.

Transcript

1. Kenny Tang JSCore on iOS
2. JSCore on iOS JSCore
3. JSCore on iOS Web
5. loadRequest: to load a web page
6. loadRequest: to load a web page stringByEvaluatingJavaScriptFromString:
 @"alert('hello') to execute javascript
7. loadRequest: to load a web page stringByEvaluatingJavaScriptFromString:
 @"alert('hello') to execute javascript runtime invokes callback methods on your 
 delegate class on link click events
8. loadRequest: to load a web page stringByEvaluatingJavaScriptFromString:
 @"alert('hello') to execute javascript basis of hybrid apps and frameworks runtime invokes callback methods on your 
 delegate class on link click events
10. resource intensive SLOW APPS must run on main thread synchronous same process #1 cause of crashes
11. WKWebview iOS 8
12. WKWebview iOS 8 separate process message handlers w/ auto-serialization script injection on doc load start/end Nitro JS engine 3x faster Sunspider benchmarks Designed for displaying web content
13. what it is + why we should care JSCore on iOS
14. JSCore on iOS Safari’s nitro JS engine exposed as a framework No webviews needed, multi-threaded What makes React Native possible
25. 60 FPS 100 cells 20 cells
26. 60 FPS 100 cells 20 cells
27. http://kalapun.com/posts/more-javascriptcore-benchmarking/
28. http://kalapun.com/posts/more-javascriptcore-benchmarking/
29. Write JS from now on?
30. Write JS from now on? Effort of writing binding classes Debuggability Perf Overhead
31. Practical Applications Code Sharing: Web & Native Update client runtime behavior - no binary resubmission
32. WWDC 2013 Session 615 WWDC 2014 Session 206 nshipster.com/javascriptcore/