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

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 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

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

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 does the term 'One Statement, Many Variables' refer to in JavaScript?

A). Declaring multiple variables with different data types in one statement

B). Initializing multiple variables with the same value in one statement

C). Declaring multiple variables with the same data type in one statement

D). Assigning multiple values to one variable in one statement

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

A). Improved code organization

B). Reduced code execution time

C). Increased variable scope

D). Limited variable reusability

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

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

A). a

B). undefined

C). null

D). 0

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);