Object ↔ any non-Primitive Variable Type rep a collection of properties. Pass by reference

aka Objects

Array

ordered sequence of elements of any type (Primitive || Object)

Date

Interface Constructor for new date object (with epoch)

Error

Constructor for generic Error

Factory Function

function to return Object (w/o this keyword & new)

Function

Global Constructor for new function Object

JSON

Global Object API to acccess Static Method to convert/parse JSON

Source: 262.ecma

map

iterable Object key:value pair struct with arbitrary key Type

Source: exploringjs.com/impatient

Math

Global Object with built-in mathematical constants & functions

Object Reference

Link to Object as Memory Address pointer to Heap location

Object.create()

Static Method to manually link Object to another as __proto__

Object

Promise

Object placeholder for async operation & eventual Settled result

Proxy

placeholder to original Object

RegExp

regex Global Object to make Regular Expressions in JS

set

unordered Object collection of unique values

URL

Object Interface to PCNE URLs

References

1. symbol ↔ immutable constant Primitive Value to rep unique Object property keys

2. Method ↔ function attach as Object property to define behaviour

3. Object Literal ↔ JS Syntax to Declare & initiate new Object

4. Backing Instance ↔ Object (created in memory) to store & access data

5. Referential Equality ↔ Objects equivalent based on Memory Address location NOT Value

6. Factory Function ↔ function to return Object (w/o this keyword & new)

7. Event ↔ Interface Object to rep actions, autogen by DOM Node after Signal Trigger

8. URL ↔ Object Interface to PCNE URLs

9. DOM Interface ↔ ObjectInterface to expose portion of DOM API to Programming Language (ie JS)

10. new Date() ↔ to return new Date Object with epoch

11. Array.from() ↔ to return new ArrayInstancefromiterable (or array-like) Object

12. Record ↔ Object with fixed number of known named properties& any Type before Compile Time

13. Dictionary ↔ Object with ASU arbitrary # properties with same type & unknown names (at Compile Time)

14. map ↔ iterable Object key:value pair struct with arbitrary key Type

15. Map() ↔ Constructor to Instantiate new map Object

16. interface ↔ Type to define Object shape & behavior blueprint

17. Object Literal Type ↔ Type Annotation for Object Literal, use for inline anon Object pass as arg

18. Args Object ↔ Object to contain all args pass into function (for current EC)

19. Constructor Function ↔ function to programmatically create Object (& link via __proto__ after Instantiation with new)

20. Prototype ↔ Model blueprint Object to Delegate methods & properties, link via __proto__, to mimic "classical" OOP Inheritance

21. shallow copy ↔ one level deep in a cloned Array/Object

22. Square Bracket Notation ↔ JS Syntax to access element from Object via (string) key

23. location ↔ to return Location Object for window

24. navigator ↔ to return Navigator Object for window

25. document ↔ to return Document Object for window

26. history ↔ to return History Object for window

27. Promise ↔ Object placeholder for async operation & eventual Settled result

28. RegExp() ↔ Constructor Function for new RegExp Object

29. Garbage-Collection ↔ 🧹Algorithm (in JS Engine) to remove old unused Object from Heap Memory

30. Global Object ↔ Object to access viaGlobal Scope

31. Prototypal Inheritance ↔ Link for all Object to their Prototype, to mimic Inheritance access to Method & props

32. Prototype Chain ↔ Series of links to connect Object to Prototype; to mimic Inheritance

33. Object.freeze() ↔ Object Static Method to make Object immutable

34. Object.isFrozen() ↔ Object Static Method to return boolean if Object is frozen

35. Error ↔ Constructor for generic Error Object

36. Fiber ↔ internal React Object to rep each Node of DOM Tree

37. Instance ↔ Object created through a class or Constructor Function

38. Object.create() ↔ Static Method to manually link Object to another as __proto__

39. readonly ↔ Property Modifier JS Keyword to set Object property as read-only

40. Req ↔ Request Object, 1st arg to pass Routing Handler

41. Res ↔ Response Object, 2nd Argument to HANDLER

42. module.exports ↔ Object to export from CommonJS, require() to import

43. ref ↔ Object return by useRef() to store state value, with mutable .current Stable Variable won't trigger re-render

44. inherits() ↔ util Static Method to set arg1 Object to inherit from arg2 object

45. Namespace Import ↔ import Object under single name to contain all named exports as properties

46. import.meta ↔ return Object with Metadata for current Module

47. WebSocket ↔ Interface Object & Constructor to access WebSockets API

48. props ↔ frozen Object of properties; passed as dynamic input from Parent Component to children

49. Interface Object ↔ Object to interact with API by expose Method & Property Key

50. Wrapper ↔ Object to wrap & Encapsulate data

51. createContext() ↔ Context API fn to create Context Object

52. Instantiation ↔ (process) to create new Object Instance from class

53. Accessor ↔ Setter/ Getter Method to write/read Accessor Property in Object

54. useRoutes() ↔ React Router Hook to colocate all routes into central Route Config , via 🍜👨‍💻 config Object

55. Proxy ↔ placeholder to original Object

56. Heap ↔ unstructured memory pool to store all Objects for app

57. initState ↔ define init state Object to describe app

58. Node Global Object ↔ Top-Level Object access within Node.js w/o req CommonJS import

59. Object Reference ↔ Link to Object as Memory Address pointer to Heap location

60. Reference Reassignment ↔ New Identifier created 👉 same value to ref Heap Memory Address (where actual Object store in Heap)

61. Primitive ↔ non-Object base data-type UNNBBSS

62. Function ↔ Global Constructor for new function Object

63. set ↔ unordered Object collection of unique values

64. Story ↔ export default Object to Declaratively render FC snapshot with specific key state to dev/test/doc

<code>export</code>  default {
  title "Button",
  component: Button
}

<code>export</code>  const ButtonRed = () => <Button label="Press me" backgroundColor="red" /\>

65. delete ↔ JS Operator to remove property from Object

66. Array ↔ ordered sequence of elements of any type (Primitive || Object)