Which of the following is a valid JavaScript symbol?

What is the result of the expression true == 1 in JavaScript?

A). true

B). false

C). Error

D). 1

Which primitive value represents absence of value or no value assigned?

A). undefined

B). null

C). 0

D). 'undefined'

What is the result of the expression 5 + '5' in JavaScript?

A). 10

B). '55'

C). '10'

D). Error

What is the result of the expression undefined + null in JavaScript?

A). undefined

B). null

C). 0

D). Error

What is the result of the expression true + false in JavaScript?

A). true

B). false

C). 1

D). 0

Which of the following is not a primitive value in JavaScript?

A). Number

B). Boolean

C). Object

D). String

What happens when you add two numbers using the + operator in JavaScript?

A). The numbers are concatenated

B). The numbers are multiplied

C). The numbers are added

D). An error occurs

Which of the following is a valid way to represent the value null in JavaScript?

A). undefined

B). NULL

C). null

D). None of the above

Which of the following statements is true about JavaScript's null value?

A). It represents an empty string

B). It represents a non-existent value

C). It represents a boolean value

D). It represents a number

What is a primitive value in JavaScript?

A). A complex data structure

B). A basic data type

C). A function

D). An array