The Deck Week 1

Question 1

What are booleans?

Answer 1

Booleans are a data type that represent true and false values

Question 2

What data types have infinite possibilities? Which data type does not?

Answer 2

Strings and numbers have infinite possibilities. Booleans can only be true or false.

Question 3

A ________ will compare ____ values and return a _______ value indicating whether that expression evaluates to ______ or ______.

Answer 3

comparison operator
two
boolean
true
false

Question 4

Comparison Operator: Not equal to

Answer 4

!===

Question 5

Comparison Operator: Equal to

Answer 5

===

Question 6

if ( ________ ) {
check ________
___ ___ if _______ is met
}

Answer 6

condition
condition
run code
condition

Question 7

What does the return statement indicate?

Answer 7

The return statement indicates that a function is done running and to pass over any code in the following lines within the function. A value should be given.

Question 8

Javascript is…?

Answer 8

a programming language that powers web pages on the internet

Question 9

What is the most common environment for running Javascript code?

Answer 9

Web Browsers

Question 10

When code is ephemeral, what does that mean?

Answer 10

Ephemeral code has no way to stick around or be saved. Such as the code within the Google Developer Javascript Console

Question 11

To make a computer do more work, ________________________.

Answer 11

make more instructions

Question 12

To make a computer do less work, _______________________.

Answer 12

make less instructions

Question 13

What are the 5 building blocks of programs?

Answer 13

values
functions
keywords
labels
comments

Question 14

Values are individual pieces of ______.

Answer 14

data

Question 15

What are the different kinds of values used in a program called?

Answer 15

types

Question 16

What are operators?

Answer 16

Operators are special symbols that perform operations on one or two values.

Question 17

What are expressions? How can they be created? What can they be compared to?

Answer 17

Expressions are fragments of code that produce values. They can be created with values and operators. They are like single line instructions.

Question 18

1 + 2 (What is 1, what is it’s type?)

Answer 18

a value

number

Question 19

1 + 2 (What is + and what does it do?)

Answer 19

an operator, it performs operations upon the values 1 and 2

Question 20

1 + 2 (What do you call this whole thing?)

Answer 20

an expression

Question 21

What kind of operators perform worn on 2 values? What kind of perator performs work on 1 value?

Answer 21

Binary Operator

Unary Operator

Question 22

‘hello’ + ‘world’ : what are we doing here?

Answer 22

concatenation

Question 23

a function is a group of _______ that perform some sort of ______

Answer 23

instructions

work

Question 24

What is a a label?

Answer 24

a human friendly way to refer to information stored in a computer’s memory

Question 25

A function label aka its name should describe what?

Answer 25

It should describe what the function does.

Question 26

When writing functions, it’s really helpful to…?

Answer 26

come up with a plan for how your function will work first, then translate it into code

Question 27

What do logical operators do?

Answer 27

Logical Operators compare 2 values and provide a boolean result indicating whether the expression is true or false

Question 28

What is the bang operator known to be?

Answer 28

The logical not, the ! operator, aka bang

Question 29

What does the or operator look like?

Answer 29

||

Question 30

What does the and operator look like?

Answer 30

&&

Question 31

what kind of expressions is this?

name === ‘jo’ || name === “bo”

Answer 31

compund expression

Question 32

How to open google chrome developer console via keyboard shortcuts?

Answer 32

Command + option + j

Question 33

What is tabular data?

Answer 33

descriptive information, usually alphanumeric, that is stored in rows and columns in a database and can be linked to spatial data

Question 34

What data structure is commonly used with tabular data?

Answer 34

a two dimensional array (rows and columns)