pavankat/constructors

Constructors and Prototypes in Plain English

This is a work in progress

What are constructor functions?

constructors let you create similar looking objects from a special function called a constructor function.

What are prototpes?

Every constructor function has only one prototype. /Users/pavankatepalli/Desktop/git/constructor-review/hangman /Users/pavankatepalli/Desktop/git/constructor-review/README.md

Any objects that are created with a constructor function all come from the same prototype.

a prototype is an object that a constructor function inherits from.

Huh?

...

When relating constructors to one another

you need to determine the constructors that you will use

and then the relationship between them

tic tac toe example

board
	would have boxes inside

	9 boxes would be here

	checkIfWin function inside of here 
		loop over the boxes and check if there's a winner

	createBoxes 
		this function would use the box constructor to create a box and push the box into the boxes property of the board and STOP after 9 boxes are pushed in

box
	horizontal: 0
	vertical: 0
	it can be either x, o or nothing
	if selected, it will be whatever the player is 
		unless it was already clicked on

board = {
	boxes: [
		{
			horizontal: 0,
			vertical: 0,
			value: 'x'
		},
		{
			horizontal: 0,
			vertical: 1,
			value: 'x'
		},
		{
			horizontal: 0,
			vertical: 2,
			value: 'x'
		}
	]
}

classroom example

class
	students : [student, student, student, student]
	capacity: 8
	addStudent -> this function will take in a student and add it to the students property BUT ONLY if the students array is 8 or less
	subject:

student
	age: 

hangman example

Word
	word: "cat",
	letters: [
		c letter object
		a letter object
		t letter object
	]

Letter
	letter: 'c',



what's the relationship between the word and the letter going to be?


_ o _

wrong: a

Word
	word: 'dog'
	letters: [
		d Letter object
		o Letter object
		g Letter object
	]
	display: 
		var str = '';

		for loop over the letter objects and it's going to run the display on each letter object
			str = str + letter.display();

		return str
	init: 
		loop over the word and create letter objects and push those letter objects into the letters property


d Letter object
	letter: d
	found: false
	display: return _
o Letter object
	letter: o
	found: true
	display: return o
g Letter object
	letter: g
	found: false
	display: function 
		check found 
			return the letter
		else
			return _