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

Which keyword is used to declare a function-scoped variable?

A). var

B). let

C). const

D). function

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

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 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

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 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

What is block scope in JavaScript?

A). Variables scoped to a block

B). Variables scoped to a function

C). Variables scoped globally

D). Variables scoped locally

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

A). var

B). let

C). const

D). function

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

A). Outer

B). undefined

C). Error

D). null

Which of the following demonstrates lexical scoping?

A). Closure

B). Hoisting

C). Global scope

D). Local scope