How the JavaScript Core (and it's Objective-C bindings) helped Paw to move from a small app to an extensible developer tool.

1. Paw
and
JavaScript Core
How a small productivity app became an
extensible testing tool
Micha Mazaheri

2. The idea behind Paw

4. Paw 2.0
[screenshot]

5. [screenshot]

9. Extensions
• Developers are power users
• API Blueprint (Apiary) wanted an integration with us
• Keep a smaller core code base
• Updates are easier, no need to submit a new binary

10. Pourquoi une API JS?
• CocoaScript (alike Sketch.app)?
• Sandbox the power given to users
• Deal with Apple’s sandboxing
• Everybody knows how to hack in JavaScript
• JavaScript Core (and it’s bindings) is awesome

11. JavaScript Core
• Powers Safari
• API C and Objective-C APIs
• Let’s us run JavaScript
• Bindings Objective-C <=> JavaScript

12. evaluateScript:

14. JSExport

17. JavaScript Core
+
Core Data

22. Thanks :-)
Micha Mazaheri
@mittsh
Paw
http://paw.rest
@luckymarmot