How does JavaScript interpret the statement let a, b = 5, c;?

What is the purpose of initializing multiple variables with the same value in one statement?

A). To save memory

B). To ensure all variables have the same value

C). To increase code complexity

D). To reduce typing

In JavaScript, which of the following data types can be declared using let in one statement?

A). Number

B). String

C). Object

D). All of the above

What happens if you declare variables with the same name in one statement?

A). It throws a syntax error

B). It creates separate variables with the same name

C). It assigns the same value to all variables with that name

D). It overwrites the existing variable with the same name

Which of the following statements is true regarding variable naming in one statement?

A). Variable names can contain spaces

B). Variable names must start with a digit

C). Variable names can start with an underscore

D). Variable names must be unique within the statement

What happens if you declare multiple variables in one statement without initializing them?

A). It throws a syntax error

B). It initializes all variables to 0

C). It initializes all variables to null

D). It initializes all variables to undefined

What is the result of the expression let x = 10, y = x++;?

A). x is 10, y is 11

B). x is 11, y is 10

C). x is 10, y is 10

D). x is 11, y is 11

Which of the following is a disadvantage of declaring multiple variables in one statement?

A). Increased code readability

B). Difficulty in tracking variable values

C). Limited variable scope

D). Reduced memory usage

Which keyword is commonly used to declare multiple variables in one statement in JavaScript?

A). multi

B). var

C). multi

D). let

Consider the code: let a, b, c;. What will console.log(a); output?

A). a

B). undefined

C). null

D). 0

What is the outcome of the code let x = 10, y = 5, x = 20;?

A). x is 10, y is 5

B). x is 20, y is 5

C). Syntax error due to variable redeclaration

D). x is 20, y is 10