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
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
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
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
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
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 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 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