JS under the hood

Just a description of how JS works

Transcript

1. JS under the hood
2. Why? There is two types of developers who have no clue how their tools works: iOS devs and JS devs
5. Object
6. WTF IS OBJECT? An Object is a collection of properties. Each property is either a named data property, a named accessor property, or an internal property
7. [[Prototype]]
9. Prototype Chain
11. this
12. constructor
14. execution context
15. Compiler Theory
16. Steps • Tokenizing / Lexing • Parsing • Code-Generation
17. Cast • Engine • Compiler • Scope
18. LHS&RHS
19. Scopes • Block Scope • Lexical Scope • Dynamic Scope(Runtime scope augmentation)
20. rebinding /mutation
22. environment
23. activation record model
26. first-class functions
27. free variable
28. closure
29. funArg problem upward/downward
30. type casting
31. coersion
34. ?