oop - What is the significance of the `Object.length` property on JavaScript's `Object` constructor? -

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this question has answer here:

the documentation javascript language's built-in global object object states that

object.length

has value of 1.

what significance of property and, additionally, why isn't object.length available in same manner array.length?

at first glance, seem me reason latter question has possible confusion in interpreter of length property on object dot notation method of property access/initialization.

the length property specifies number of arguments expected function.

as object belongs type function , length property of function determines number of arguments, object.length returns length of arguments being expected.

consider following example: 

function test(a, b, c) {}  console.log(test.length);

and object:

console.log(typeof object);  console.log(object.length); //returns 1

"why isn't object.length available in same manner array.length?"

note array of type object(try typeof []) hence "why isn't object.length available us" not literally correct. if referring object-without-indices, read object property using key of object, if there no key length, obj.length returns undefined.


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