What is lexical scoping in JavaScript?

How does block scope help prevent variable hoisting issues?

A). By moving variables to the top of the code

B). By restricting variables to their block

C). By making variables accessible globally

D). By assigning default values to variables

What happens if you try to access a block-scoped variable outside its block?

A). The variable is accessible globally

B). The variable is accessible within its block

C). An error occurs

D). The variable is accessible within a function

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

What is the output of console.log(outerVar); outside outerFunction if let outerVar = 'Outer'; is declared inside outerFunction?

A). Outer

B). undefined

C). Error

D). null

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

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

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

A). A zone with no variables

B). A zone where variables are in memory but not accessible

C). A zone where variables are accessible globally

D). A zone with limited variable scope

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 the benefit of block scope in loops?

A). It allows variables to be reassigned within each iteration

B). It prevents variable hoisting

C). It restricts variables to the loop block

D). It makes variables globally accessible

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