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

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

What is the behavior of the code let a, b = 5, c = b;?

A). b and c are initialized to 5, a is initialized to undefined

B). a, b, and c are initialized to 5

C). b is initialized to 5, c is initialized to undefined, a is initialized to 5

D). a and c are initialized to 5, b is initialized to undefined

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

A). multi

B). var

C). multi

D). let

What is the syntax for declaring multiple variables in one statement using the let keyword?

A). let var1, var2, var3;

B). let var1 = value, var2 = value, var3 = value;

C). let var1 = value; let var2 = value; let var3 = value;

D). let (var1, var2, var3);

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

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

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

A). Declares a, initializes b to 5, declares c

B). Declares and initializes a to 0, initializes b to 5, declares c

C). Declares a, initializes b to undefined, declares c

D). Declares and initializes a, b, and c to 0

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

A). a

B). undefined

C). null

D). 0

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 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