How does lexical scoping affect nested functions in JavaScript?

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

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

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

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

A). var

B). let

C). const

D). function

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

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

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

Which of the following demonstrates lexical scoping?

A). Closure

B). Hoisting

C). Global scope

D). Local scope

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

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

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

C). They are both block-scoped

D). They are both function-scoped