Into

Question 1

IEX

Answer 1

Elixirs interactive Shell

Question 2

3 new command line executables

Answer 2

IEX - opens up interactive elixir
IEX.bat on windows PowerShell

Elixir -
Elixirs -

Question 3

Integer

Answer 3

1,

0x1F

Question 4

Float

Answer 4

1.0

Question 5

Boolean

Answer 5

True
False

Question 6

Atom

Answer 6

:atom

A constant whose value is its own name

:Apple —> :Apple

Question 7

String

Answer 7

“Elixir”

Question 8

List

Answer 8

[1, 2, 3]

Question 9

Tuple

Answer 9

{1, 2, 3}

Question 10

/

Answer 10

Division
Always returns float

Question 11

Div(10,2)

Answer 11

—> 5
Not a float

Question 12

rem(10,3)

Answer 12

—> 1

Question 13

Round(3.58)

Answer 13

—> 4

Question 14

Trunc(3.58)

Answer 14

—> 3

Question 15

Is_integer(1)
Is_integer(2.0)

Answer 15

—> true
—> false

Question 16

Arity
Trunc/1

Answer 16

The arity of a function describes the number of arguments it takes.

Refers to the Trunc function with an arity of 1

Question 17

Kernel

Answer 17

Defines general use functions
Is automatically imported into a namespace

Question 18

Nil || true
True || 1
Nil && 13

Answer 18

True
True
Nil

Question 19

Nil

Answer 19

Represents the absence of a value

Question 20

Is_atom(false)
Is_boolean(:false)

Answer 20

—> true
—> true

Question 21

<>

Answer 21

Concatenate two strings

Question 22

“Hello #{“world”}”

Answer 22

Hello world

Question 23

IO.puts()

Answer 23

Prints a string

—> :ok

Question 24

String.length()
String.upcase()