typeof
42
number
"Дока"
string
true
boolean
undefined
undefined
null
object ⚠️
{ }
object
[ ]
object
fn() {}
function
Symbol()
symbol
1n
bigint
typeof
new Set([1, 2, 3])
→
object
⚠️ null → "object" — баг JavaScript. Set, Map, Date, RegExp → тоже "object"