Functions Are Object In Javascript?

var obj = {}; var fn = function(){}; obj.prop = 'some value'; fn.prop = 'some value'; assert( obj.prop == fn.prop, 'Both are objects, both have the property.' ); assert(typeof(obj)

Solution 1:

That's because the direct type of a function is "function".

However, you missed this assertion:

fn instanceof Object // true

Btw, types such as "number" and "string" are strictly not descendants of Object, even though they are like objects in the sense that they have methods; just one of those things that makes JavaScript interesting :)

See also: typeof and its range of values.

Solution 2:

Functions are objects, but they are a particular type of object. typeof(fn) should evaluate to "function", which is a sub-type of "object".