typeofの履歴
返す型は6種類
string
number
boolean
function
undefined
object
var hoge = function(){ retun 1+2};
typeof hoge
↓
function
typeof hoge()
↓
number
gacky's report
(210 keywords)
(210 keywords)
返す型は6種類
string
number
boolean
function
undefined
object
var hoge = function(){ retun 1+2};
typeof hoge
↓
function
typeof hoge()
↓
number
