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What keyword do we use to attach a variable to an instance of an object within the class definition? a) var b) attach c) bind d) this

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Programming

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Mar 1, 2020

Cards (87)

Section 1

(50 cards)

What keyword do we use to attach a variable to an instance of an object within the class definition? a) var b) attach c) bind d) this

Front

d) this

Back

What do you call "colon" ? a) | b) , c) ; d) :

Front

d) :

Back

Boolean variables can equal what? a) yes and no b) any number c) any value d) true or false

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d) true or false

Back

What function do we use to load files before sketch() runs? a) init() b) load() c) preload() d) let()

Front

c) preload()

Back

What do you call "exclamation mark" ? a) " b) / c) ! d) ?

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c) !

Back

Which of the following IS NOT a system variable? a) height b) width c) xMouse d) score

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d) score

Back

How would you set the fill color to red? a) fill(0,255,0); b) fill(255,0,0) c) fill(255) d) fill(0);

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b) fill(255,0,0)

Back

If you are writing a custom function, what keyword do you use to return a value? a) result b) value c) return d) evaluate

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c) return

Back

What function do we use to remove an object from an array? a) splice() b) pop() c) remove() d) push()

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a) splice()

Back

class Orb{ constructor(x,y,r=40){ this.x = x; this.y = y; this.r = r; } } let myOrb(10,20,30); In the code above, what is the default value of r? a) 10 b) 40 c) 30 d) 20

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b) 40

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To avoid skipping objects, when removing objects from an array, we should: a) loop through the array forwards b) don't use a loop c) loop through the array backwards d) start looping at index 1

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c) loop through the array backwards

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What does "fetch" mean in French ? a) aller b) aller chercher c) chercher d) annuler

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b) aller chercher

Back

What do you call "right parenthesis" ? a) ( b) ) c) " d) [

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b) )

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What property will return the size of an array? a) array.size b) array.list c) array.number d) array.length

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d) array.length

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What do you call "right brace" ? a) ) b) ] c) } d) /

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c) }

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What do you call "quotation mark" ? a) ( b) ) c) " d) [

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c) "

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What function returns the number of milliseconds that have passed since the sketch started? a) milliseconds() b) millis() c) millisElapsed() d) timeElapsed()

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b) millis()

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What is the keyword used to create a new variable? a) variable b) var c) vrbl d) v

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b) var

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What is the symbol for not equal to? a) *= b) || c) -= d) !=

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d) !=

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Given the following array: var students = ["Amy", "David", "Sue", "Chris", "John"]; What will students[4] return? a) Chris b) John c) Sue d) Amy

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b) John

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When you call a function, the values or variables that you pass into the function are called? a) parameters b) vars c) values d) arguments

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d) arguments

Back

What do you call "semicolon" ? a) | b) , c) ; d) :

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c) ;

Back

What do you call a variable in a function's definition? a) parameters b) arguments c) values d) vars

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a) parameters

Back

What function do you use to set the size of the canvas? a) createCanvas() b) canvas() c) makeCanvas() d) size()

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a) createCanvas()

Back

What do you call "question mark" ? a) " b) / c) ! d) ?

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d) ?

Back

Polar coordinates define a point in space in terms of: a) latitude and longitude b) x location and y location c) distance and angle d) x location, y location, and z location

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c) distance and angle

Back

What is the symbol for or? a) || b) *= c) < d) !=

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a) ||

Back

If I want to call a function repeatedly at some interval, which function should I use? a) setInterval() b) millis() c) setTimeout() d) setTimer()

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a) setInterval() c) setTimeout()

Back

How does p5.js relate to JavaScript? a) p5.js doesn't relate to JavaScript at all b) p5.js is a library of JavaScript c) p5.js is an applet built with JavaScript d) JavaScript is a library of p5.js

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B) p5.js is a library of JavaScript

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What will the following code print to the console? var phrase = "programming is fun"; console.log(phrase.substring(0, 3)); a) programming b) rog c) pro d) prog

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c) pro

Back

What function do we use to load files before sketch() runs? a) init() b) load() c) preload() d) load()

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c) preload()

Back

What do you call "left bracket" ? a) ( b) ) c) " d) [

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d) [

Back

Give an example of a p5.js function that returns a value. a) fill() b) setup() c) rect() d) random()

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d) random()

Back

What keyword do we use to create a new instance of an object from a class? a) new b) var c) make d) create

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a) new

Back

By default, p5.js uses what measurement for angles? a) inches b) degrees c) pixels d) radians

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d) radians

Back

What is the syntax called used to access the properties and function inside an object? a) literal syntax b) constructor syntax c) dot syntax d) class syntax

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c) dot syntax

Back

If I want to call a function repeatedly at some interval, which function should I use? a) setInterval() b) millis() c) setTimeout() d) setTimer()

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a) setInterval()

Back

What do you call "left parenthesis" ? a) ( b) ) c) " d) [

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a) (

Back

If you want something to animate, where should you put it in your code? a) after the draw() function b) before the setup() function c) in the setup() function d) in the draw() function

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d) in the draw() function

Back

In p5.js the upper left hand corner of the screen is defined by what x,y coordinates? a) 100,0 b) 0,100 c) 0,0 d) 100,100

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c) 0,0

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What is the symbol used to test for equality? a) - b) == c) = d) equals

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b) ==

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What do we call the function we define to create an instance of an object from a class? a) Maker Function b) Constructor Function c) Create Function d) New Function

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b) Constructor Function

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What function restores the previous state of all transformations? a) push() b) save() c) restore() d) pop()

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d) pop()

Back

What do you call "backslash" ? a) \ b) / c) ! d) ?

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a) \

Back

In p5.js/JavaScript, what do we call a list of things? a) list b) collection c) array d) group

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c) array

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What does "should" mean in French ? a) chou b) sou c) fou d) devrais

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d) devrais

Back

What do you call "comma" ? a) | b) , c) ; d) :

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b) ,

Back

What function to we use to add an instance of an object to an array? a) splice() b) add() c) join() d) push()

Front

d) push()

Back

If I wanted the random function to return a random number between 5 and 10, what would I pass into the function? a) random(5-10); b) random(5,10); c) random(10-5); d) random(10) - random(5);

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b) random(5,10);

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By default, the JavaScript functions setInterval() and setTimeout() take what as an argument? a) milliseconds b) minutes c) seconds d) the frame rate of the sketch

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a) milliseconds

Back

Section 2

(37 cards)

How to write an IF statement in JavaScript? a) if (i == 5) b) if i == 5 then c) if i = 5 then d) if i = 5

Front

a) if (i == 5)

Back

What do you call "slash" ? a) \ b) / c) ! d) ?

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b) /

Back

What is the correct syntax for referring to an external script called "xxx.js"? a) <script href="xxx.js"> b) <script name="xxx.js"> c) <script src="xxx.js">

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c) <script src="xxx.js">

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Is JavaScript case-sensitive? a) Yes b) No

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a) Yes

Back

What is the correct way to write a JavaScript array? a) var colors = ["red", "green", "blue"] b) var colors = 1 = ("red"), 2 = ("green"), 3 = ("blue") c) var colors = "red", "green", "blue" d) var colors = (1:"red", 2:"green", 3:"blue")

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a) var colors = ["red", "green", "blue"]

Back

How does a FOR loop start? a) for (i = 0; i <= 5; i++) b) for (i = 0; i <= 5) c) for (i <= 5; i++) d) for i = 1 to 5

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a) for (i = 0; i <= 5; i++)

Back

How can you add a comment in a JavaScript? a)  b) 'This is a comment c) //This is a comment

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c) //This is a comment

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How do you call a function named "myFunction"? a) myFunction() b) call function myFunction() c) call myFunction

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a) myFunction()

Back

What will the following code print to the console? var phrase = "julie,ben,tim,sue,jeff"; var parts = phrase.split(","); console.log(parts[2]); a) julie b) , c) tim d) ben

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c) tim

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How do you write "Hello World" in an alert box? a) msg("Hello World"); b) msgBox("Hello World"); c) alert("Hello World"); d) alertBox("Hello World");

Front

c) alert("Hello World");

Back

Whenever we load a local file into our sketch (such as an image, a sound, or a text file) what do we need to do to test our sketch on our computer? a) use a global variable b) run a local server c) use a callback function d) use JSON

Front

b) run a local server

Back

The loadStrings() function will load a text file as what? a) an array of strings, split up by each new line in the text file b) one large string c) an array of individual words d) an array of string split up by white space

Front

a) an array of strings, split up by each new line in the text file

Back

What is the correct JavaScript syntax for opening a new window called "w2" ? a) w2 = window.open("http://www.w3schools.com"); b) w2 = window.new("http://www.w3schools.com");

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a) w2 = window.open("http://www.w3schools.com");

Back

How can you detect the client's browser name? a) browser.name b) navigator.appName c) client.navName

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b) navigator.appName

Back

The external JavaScript file must contain the <script> tag. a) True b) False

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b) False

Back

JSON is a: a) programming language b) API c) scripting language d) data format

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d) data format (JavaScript Object Notation)

Back

What is the command to create a "new line" inside a string? a) [newline] b)
c)
ew d) \\

Front

b)

Back

How do you round the number 7.25, to the nearest integer? a) Math.rnd(7.25) b) rnd(7.25) c) round(7.25) d) Math.round(7.25)

Front

d) Math.round(7.25)

Back

How to write an IF statement for executing some code if "i" is NOT equal to 5? a) if i =! 5 then b) if i <> 5 c) if (i != 5) d) if (i <> 5)

Front

c) if (i != 5)

Back

"API" is an acronym for what? a) Application Programming Interface b) Applied Program Interaction c) Asynchronous Programmable Interface d) Asynchronous Programming Interaction

Front

a) Application Programming Interface

Back

How to insert a comment that has more than one line? a) /This comment has more than one line/ b)  c) //This comment has more than one line//

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a) /This comment has more than one line/

Back

How do you create a function in JavaScript? a) function = myFunction() b) function:myFunction() c) function myFunction()

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c) function myFunction()

Back

What is the correct JavaScript syntax to change the content of the HTML element below? <p id="demo">This is a demonstration.</p> a) #demo.innerHTML = "Hello World!"; b) document.getElementByName("p").innerHTML = "Hello World!"; c) document.getElement("p").innerHTML = "Hello World!"; d) document.getElementById("demo").innerHTML = "Hello World!";

Front

d) document.getElementById("demo").innerHTML = "Hello World!";

Back

Within an API Query, query parameters are joined together with what character? a) / b) + c) & d) .

Front

c) &

Back

Inside which HTML element do we put the JavaScript? a) <scripting> b) <javascript> c) <js> d) <script>

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d) <script>

Back

What will the following code return: Boolean(10 > 9) a) NaN b) true c) false

Front

b) true

Back

JavaScript is the same as Java. a) true b) false

Front

b) false

Back

In the code below, what is the name of the callback function? function setup() { let myData = "data.json"; loadJSON(myData, gotData); } a) myData b) gotData c) setup d) data.json

Front

b) gotData

Back

Most API's require what to access their data? a) API Key b) your firstborn c) encrypted password d) 2 factor authentication

Front

a) API Key

Back

Which event occurs when the user clicks on an HTML element? a) onmouseclick b) onchange c) onclick d) onmouseover

Front

c) onclick

Back

How do you find the number with the highest value of x and y? a) ceil(x, y) b) top(x, y) c) Math.ceil(x, y) d) Math.max(x, y)

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d) Math.max(x, y)

Back

If I wanted to query an API every 10 seconds, what would be the best function to use? a) setTimeout() b) setInterval() c) preload() d) draw()

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b) setInterval()

Back

Which operator is used to assign a value to a variable? a) - b) * c) x d) =

Front

d) =

Back

How do you declare a JavaScript variable? a) v carName; b) var carName; c) variable carName;

Front

b) var carName;

Back

How does a WHILE loop start? a) while (i <= 10; i++) b) while (i <= 10) c) while i = 1 to 10

Front

b) while (i <= 10)

Back

Where is the correct place to insert a JavaScript? a) The <body> section b) The <head> section c) Both the <head> section and the <body> section are correct

Front

c) Both the <head> section and the <body> section are correct

Back

CSV stands for: a) comma separated values b) comma segmented variables c) character separated values d) character standard version

Front

a) comma separated values

Back