1. 程式人生 > >Object.prototype.toString.call()

Object.prototype.toString.call()

Object.prototype.toString.call(1) // "[object Number]"

Object.prototype.toString.call("1") // "[object String]"

Object.prototype.toString.call(true) // "[object Boolean]"

Object.prototype.toString.call(null) // "[object Null]"

Object.prototype.toString.call(undefined) // "[object Undefined]"

Object.prototype.toString.call({}) // "[object Object"

Object.prototype.toString.call([]) // "[object Array]"