What is the result of the following code snippet?

What is the behavior of accessing a let variable before its declaration in JavaScript?

A). A. SyntaxError

B). B. ReferenceError

C). C. undefined

D). D. No error

Which of the following is true about const variables in JavaScript?

A). A. They can be reassigned after declaration

B). B. They can be accessed before declaration

C). C. They cannot be declared without an initial value

D). D. They cannot be hoisted

How does hoisting affect const declarations in JavaScript?

A). A. const variables are hoisted with their initial values

B). B. const variables are hoisted but cannot be accessed before declaration

C). C. const variables are hoisted and can be accessed before declaration

D). D. Hoisting does not affect const declarations

How does hoisting affect function declarations in JavaScript?

A). A. Function declarations are hoisted with their function bodies

B). B. Function declarations are hoisted but cannot be accessed before declaration

C). C. Function declarations are not hoisted

D). D. Hoisting has no effect on function declarations

Which keyword allows hoisting of variables in JavaScript?

A). A. var

B). B. let

C). C. const

D). D. Both A and B

What happens if you declare a const variable with the same name as an existing variable in JavaScript?

A). A. SyntaxError is thrown

B). B. The existing variable is reassigned

C). C. ReferenceError is thrown

D). D. TypeError is thrown

How can you ensure that a const variable is initialized before use in JavaScript?

A). A. Use let instead of const for all variables

B). B. Declare const variables at the top of their scope

C). C. Assign a default value to const variables

D). D. None of the above

How does hoisting affect variable shadowing in JavaScript?

A). A. It allows variables with the same name in different scopes to coexist

B). B. It prevents variables with the same name in different scopes from coexisting

C). C. It has no effect on variable shadowing

D). D. It automatically renames variables with the same name

What happens if you access a var variable before its declaration in JavaScript?

A). A. ReferenceError

B). B. TypeError

C). C. undefined

D). D. No error

What is the purpose of the Temporal Dead Zone (TDZ) in JavaScript?

A). A. To prevent variable reassignment

B). B. To catch errors at compile time

C). C. To ensure variables are initialized before use

D). D. To reduce memory usage