What does the Temporal Dead Zone (TDZ) refer to?

What is block scope in JavaScript?

A). Variables scoped globally

B). Variables scoped within a function

C). Variables scoped to a block

D). Variables scoped to an object

What is the output of console.log(blockVar); outside a block if let blockVar = 'Block'; is declared inside a block?

A). Block

B). undefined

C). Error

D). null

Which of the following correctly defines a block scope?

A). A scope that encompasses the entire codebase

B). A scope that encompasses a function

C). A scope that encompasses a block of code delimited by curly braces

D). A scope that encompasses an object

What happens when you declare a constant with const inside a block and try to reassign it?

A). It throws an error

B). It allows reassignment

C). It assigns the value globally

D). It assigns a default value

How can you access a variable declared in an inner block from an outer block?

A). Using the var keyword

B). Using the let keyword

C). Using the const keyword

D). Using the this keyword

How can you ensure variable immutability within a block?

A). Declare the variable with var

B). Declare the variable with let

C). Declare the variable with const

D). Assign a default value

Which keyword introduces block-scoped variables in JavaScript?

A). var

B). let

C). const

D). function

What is the output of console.log(i); outside the loop if let i = 10; is declared inside a loop?

A). 10

B). undefined

C). Error

D). 0

What is lexical scoping in JavaScript?

A). Variables scoped to the entire codebase

B). Variables scoped to their functions

C). Variables scoped based on their position in the code

D). Variables scoped based on their names

What is the main difference between var and let in terms of scope?

A). var is block-scoped, let is function-scoped

B). var is function-scoped, let is block-scoped

C). Both var and let are block-scoped

D). Both var and let are function-scoped