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

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...	...	@@ -1,69 +1,61 @@
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.
	25	+asd
30	30
31		-####
	27	+```
	28	+# Object-Oriented Style
32	32
33		-#### Object-Oriented Style
	30	+class Square {
	31	+ length float
34	34
35		- interface GeometricObject {
36		- Circumference() float
37		- }
38		-
39		- class Square implements GeometricObject {
40		- length float
41		-
42		- constructor(length float) {
43		- this.length = length
44		- }
45		-
46		- func Circumference() float {
47		- return 4 * this.length
48		- }
49		- }
50		-
51		- class Circle implements GeometricObject {
52		- radius float
53		-
54		- constructor(radius float) {
55		- this.radius = radius
56		- }
57		-
58		- func Circumference() float {
59		- return 2 * PI * this.radius
60		- }
61		- }
	33	+ constructor(length float) {
	34	+ this.length = length
	35	+ }
62	62
63		-1. Adding a function Area() to the GeometricObject interface is hard because it requires touching existing code, namely extending all Square and Circle classes with the new function.
64		-1. Adding a new datatype, Rectangle, is easy because only new code is added, namely a Rectangle class.
	37	+ func Area() float {
	38	+ return this.length * this.length # Formula for square area: side^2
	39	+ }
65	65
66		-### Conclusion
	41	+ func Circumference() float {
	42	+ return 4 * this.length # Formula for square circumference: 4 * side
	43	+ }
	44	+}
67	67
68		-* The lesson learned here is that data structures are easy to extend with functions, and objects are easy to extend with data types.
69		-* Although the difference between the two styles may seem insignificant in this simplified example, it has serious implications in complex production codebases with multiple data types and behaviors.
	46	+class Circle {
	47	+ radius float
	48	+
	49	+ constructor(radius float) {
	50	+ this.radius = radius
	51	+ }
	52	+
	53	+ func Area() float {
	54	+ return 3.14159 * this.radius * this.radius # Formula for circle area: πr^2
	55	+ }
	56	+
	57	+ func Circumference() float {
	58	+ return 2 * 3.14159 * this.radius # Formula for circle circumference: 2πr
	59	+ }
	60	+}
	61	+```