null

undefined

NaN

Ошибка в коде

False

True

Undefined

Error

true, false, false

false, false, false

true, true, true

false, true, true

True, false

False, false

1, false

Error

{ id: 100, name: "User", password: "admin"}

{ id: 100, password: "admin"}

{ id: 100, name: "User"}

Ничего не выведет

123

"number"

Undefined

Error

[1, 2, 3, , , , , , , , 11]

[1, 2, 3, empty, 11]

[1, 2, 3, 11]

undefined

Error

box-shadow: 0 0 5px #000;

img-shadow: inset 0 0 5px #000;

box-shadow: inset 0 0 5px #000;

img-shadow: inset 5px #000;

[12, 13, 345], [23, 89], [45, 890, 5]

"12, 13, 345, 23, 89, 45, 890, 5"

"12, 13, 34523, 8945, 890, 5"

Error