javascript-constructors Flashcards

1
Q

What does the new operator do?

A

creates an instance of object from the constructor function(user-defined or built-in object).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What property of JavaScript functions can store shared behavior for instances created with new?

A

constructor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does the instanceof operator do?

A

tests to see if the prototype property of a constructor appears anywhere in the prototype chain of an object. The return value is a boolean value.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly