JavaScript types
- by Alex Ivasyuv
Hi,
as per http://www.ecma-international.org/publications/files/ECMA-ST/ECMA-262.pdf
JavaScript has 6 types: undefined, null, boolean, string, number, object.
var und;
console.log(typeof und); // <-- undefined
var n = null;
console.log(typeof n); // <--- **object**!
var b = true;
console.log(typeof b); // <-- boolean
var str = "myString"
console.log(typeof str); // <-- string
var int = 10;
console.log(typeof int); // <-- number
var obj = {}
console.log(typeof obj); // <-- object
Question 1:
Why null is object type, if it has to be a null type.
Question 2:
What about function?
var f = function() {};
console.log(typeof f); // <-- function
Variable f has "function" type. Why it doesn't specified in specification
as separate type.
Thanks,
