Javascript

Question 1

What is a “thread” in Javascript?

Answer 1

A single task or instruction to be executed

Question 2

What does “null” mean?

Answer 2

An intentional absence of any value; must be assigned

Question 3

What does it mean for a variable to be “undefined?”

Answer 3

It does not have a defined value

Question 4

What is an “object” in Javascript?

Answer 4

It is an element that contains properties (“traits”) and methods (“behaviors”).