10

undefined

null

function() {}

ReferenceError

5 4

0 0

2 3

10 12

8 10

ReferenceError

true

false

"Error"

ReferenceError

"From left to right"

"From undefined to undefined"

"From Symbol to Symbol"

Error

"hello"

"olleh"

"hell"

"h"

""

ReferenceError

[true, true, true]

[false, false, false]

false

true

[80, 95, 88]

[2, 4, 6, 8, 10]

[Promise, Promise, Promise, Promise, Promise]

[undefined, undefined, undefined, undefined, undefined]

ReferenceError

TypeError

1 1

1 undefined

undefined 1

ReferenceError

["a", "b"]

["a", "b", 2]

[2, "a", "b"]

[0, 1, "length"]

[0, 1, 2]

15

0

[3, 5, 7, 9, 5]

ReferenceError

undefined