Section 1
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setup ( )
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Last updated
6 years ago
Date created
Mar 1, 2020
Cards (57)
Section 1
(50 cards)
setup ( )
happens once - info applied to the whole page
random ( )
will produce decimal numbers
push
can add one or more element to the end of an array
pop
pulls the last element off of the given array and returns it
Are these acceptable variables? var 1count var my name var *score var width
no
infinite loop
never ending loop. A programming error, will crash your browser
how to call a function
Name ( ) { }
this
binds a property or function to a class or object
(0,0,255)
Blue
object
A collection of things we can use and reuse data that has its own properties - has a period ex: this . length
system variables
width, height, mouseX, frameRate
undefined
variable, property, method
operators
+, -, *, /, ++, --
global variable
variable outside a function ex: var apples function word{ apples = 100 pears = 50 } -> apples
array
is how to make a list [...] let myArray = ["...", "...", "..."]
array
a list - let myArray = [ ]
objects
a collection of things we can use and reuse
data types
two types of numbers within these 1. integers (-1 , 450) 2. Float (o.1 , 12.456)
local variable
variable within a function
single line comment
//...
score vs. Score
var score = new Score
null
when an object has not been defined
global variable
variable outside a function
p5.js
a collection of functions built on JavaScript
function
a block of code that can be executed when called
console
prints text to the console
Are these acceptable variables? var one_cunt var _count var myScore
yes
events
onClick, onMouseOver, onLoad
foo
a placeholder for a value
local variable
variable within a function ex: function word( ){ var blah } -> var blah
string
lines of text within data types "frog", "a red truck" ("a word, sentence, or paragraph)
parameter
(variables in here) (example1, example2)
argument
anything within parenthesis
for loop
allow you to repeat a certain code
constructor function
creates an instance of an object from a class
arguments
Anything with a parenthesis (word,10,5) ex: find arguments: var yloc = width/2; fill (255,0,0); rect (x,yloc,50,50); console.log ("y="+yloc) arguments: (255,0,0) (x,yloc,50,50) ("y="+yloc)
declare a variable
var myName = "Mariah"
nested for loops
a loop inside of a loop used for grids
for loops
allows you to repeat a certain code for (x=0; x<5; x++)
boolean value
true or false
(0,255,0)
Green
.length
prints out how many elements are in an array
string
lines of text within data types
multi line comment
/.../
draw ( )
can happen multiple times - everything you want to animate
parameters
things listed inside parenthesis
function
a block of code that can be executed when called function Name ( ) { }
(255,0,0)
Red
console.log
print the data in an HTML like tree
concatenate
adding or combining strings
Section 2
(7 cards)