Changes for page Code Example: Data Structure Style vs. Object Style

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...	...	@@ -1,42 +1,30 @@
1		-### Use Cases
	1	+asd
2	2
3		-This example is intended to demonstrate the extensibility differences between data structures and objects by extending them with
	3	+```
	4	+type Square struct {
	5	+ length float
	6	+}
4	4
5		-1. an Area() function (extending behavior)
6		-1. a rectangle type (extending data type)
	8	+type Circle struct {
	9	+ length float
	10	+}
7	7
8		-### Data Structure Style
	12	+func Area(g GeometricObject) float {
	13	+ switch (g.type()):
	14	+ case Circle:
	15	+ return
	16	+ case Square:
	17	+ return ...
	18	+}
9	9
10		- interface GeometricObject {}
11		-
12		- class Square implements GeometricObject {
13		- length float
14		- }
15		-
16		- class Circle implements GeometricObject {
17		- radius float
18		- }
19		-
20		- function Circumference(g GeometricObject) float {
21		- switch type(g):
22		- case Square:
23		- return 4 * g.length
24		- case Circle:
25		- return 2 * PI * g.radius
26		- }
	20	+func Circumference(g GeometricObject) float {
	21	+ ...
	22	+}
	23	+```
27	27
28		-1. Adding an Area() function with a very similar anatomy to Circumference() is easy because it only requires adding new code.
29		-1. Adding a new datatype, Rectangle, is harder because it requires touching existing code, namely any functions like Circumference() or Area() that need to be enabled handle this datatype.
30		-
31		-####
32		-
33	33	#### Object-Oriented Style
34	34
35		- interface GeometricObject {
36		- Circumference() float
37		- }
38		-
39		- class Square implements GeometricObject {
	27	+ class Square {
40	40	length float
41	41
42	42	constructor(length float) {
...	...	@@ -43,12 +43,16 @@
43	43	this.length = length
44	44	}
45	45
	34	+ func Area() float {
	35	+ return this.length * this.length
	36	+ }
	37	+
46	46	func Circumference() float {
47	47	return 4 * this.length
48	48	}
49	49	}
50	50
51		- class Circle implements GeometricObject {
	43	+ class Circle {
52	52	radius float
53	53
54	54	constructor(radius float) {
...	...	@@ -55,16 +55,11 @@
55	55	this.radius = radius
56	56	}
57	57
	50	+ func Area() float {
	51	+ return PI * this.radius * this.radius
	52	+ }
	53	+
58	58	func Circumference() float {
59	59	return 2 * PI * this.radius
60	60	}
61	61	}
62		-
63		-1. Adding a function Area() to GeometricObject Interface is hard since all classes implementing
64		-1. Adding a new datatype, Rectangle, is more difficult because it requires touching existing code, namely any functions like Circumference() or Area() that need to be enabled handle this datatype.
65		-
66		-### Conclusion
67		-
68		-asd
69		-
70		-