Answer 1

No, we can not create any object or its array without new keyword because the nee keyword is used to allocate memory for that variable.. And memory must be allocated for the object to be used...

Answer 2

Shivraj pattanshetti a number of type int is not an objective it is a primitive type.

Answer 3

Arrays are special objects in JavaScript.
var x = ['foo', 'bar']; //typeof x is object..create array without new keyword.
var x = new Array('foo','bar") //typeof x is object
The difference between the first and second is the second uses a native.