javascript - Get the properties of the function object -

i learning object oriented javascript, object palyground

according tutorial, function considered object , know can properties of object using in keyword in javascript

var obj = {a:"hello",b=123}; for(var prop in obj) alert(var); 

the above code gives me keys present in function object obj expected

but when use same code situation

var funobj = function(a,b){    alert("hello"); } for(var prop in funobj) alert(prop); 

or in case even

function myfunction(a,b){  alert("hello"); } for(var prop in myfunction) alert(prop); 

it not give me output, ideally according tutorial function object should comprise of three properties are: name, length , prototype getting none, doing wrong

kindly me

where doing wrong

for...in iterates on enumerable properties. default properties of native objects non-enumerable.

you use object.getownpropertynames list of properties of function object:

> object.getownpropertynames(function() {}) ["length", "name", "arguments", "caller", "prototype"] 

or if want inspect properties learning purposes, use console.dir log function: