Eloquent JS terms

Question 1

values

Answer 1

to organize bits better, they are separated into chunks known as values

Question 2

numbers

Answer 2

are values of a number type:

200 +4 * 11

numbers are integers, and operators are plus & addition

Question 3

%

Answer 3

modulo, mod for short

remainder

ex: 300%100 -> 3 with a remainder of 14

144%12 -> 12, with a remainder of 0

Question 4

NaN

Answer 4

not a number

you ge this when you try to do math like 0/0, or other operations that don’t yield meaninful results

Question 5

string

Answer 5

• basic data types that represent text
• enclosed in quotes

Question 6

concatinate

Answer 6

“con” + “cat” + “e” + “nate”

Question 7

template literals

Answer 7

back tick quoted strings can span lines & embed other values

ex: ‘half of 100 is ${100/2}

is

“half of 100 is 50”

Question 8

Unary operators

Answer 8

• some operators are written in words instead of symbols
• ex: typeof operator -> produces a string value naming the type of the value you give it

Question 9

Boolean Values

Answer 9

Distinguishes between only 2 possibilities like yes/no, true/false

ex: console.log (3 > 2)

// true

conosle.log (3 < 2)

// false

Question 10

Binary operators

Answer 10

ex: + -

Question 11

Operator Types

Answer 11

> = greater than or equal to

< = less than or equal to

= = equal to

! = not equal to

Question 12

Logical operators

Answer 12

&& and

|| or

! not

? : conditional operator that is ternary

Question 13

Used to denote the absence of meaningful value and are mostly interchangeable

Answer 13

NULL

UNDEFINED

Question 14

This catches and holds values, imagine them as tentacles rather than boxes

Answer 14

Variable/Binding

Question 15

Some keywords that denote bindings/variable

Answer 15

var

const

let

Question 16

What is a piece of program wrapped in a value?

Answer 16

Function

Question 17

Executing a function is called ______, _____, or _____

Answer 17

invoke

call

apply

Question 18

Conditional execution is created with this keyword

Answer 18

if

Question 20

A control flow that runs a code multiple times

Answer 20

Loop

Question 21

A statement starting with the keyword while creates a ____.

Answer 21

Loop