How do you declare a function-scoped variable using ES6?

What is the output of console.log(innerVar); outside of exampleFunction if var innerVar = 'Hello'; is defined inside exampleFunction?

A). Hello

B). undefined

C). Error

D). null

How do you declare a block-scoped variable in ES6?

A). var

B). let

C). const

D). function

What is function scope in JavaScript?

A). Variables defined within a function

B). Variables defined outside a function

C). Variables defined within an object

D). Variables defined globally

Which of the following demonstrates lexical scoping?

A). Closure

B). Hoisting

C). Global scope

D). Local scope

What is hoisting in JavaScript?

A). Moving variables to the top of their function or global scope

B). Making variables undefined

C). Creating new variables

D). None of the above

Can function-scoped variables be accessed from outside their functions?

A). Yes

B). No

C). Only if they are constants

D). Only if they are defined globally

What is the benefit of block scope in JavaScript?

A). It reduces variable conflicts

B). It increases global scope

C). It simplifies variable declarations

D). It makes variables inaccessible

What happens to a function-scoped variable outside of its function?

A). It becomes a global variable

B). It becomes a local variable

C). It is accessible only within the function

D). It throws an error

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

A). Block

B). undefined

C). Error

D). null

Which of the following is true about function scope in JavaScript?

A). Variables are accessible globally

B). Variables are accessible only within their functions

C). Variables are accessible within an object

D). Variables are accessible everywhere in the code