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

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

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 do you declare a function-scoped variable using 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

How does lexical scoping affect nested functions in JavaScript?

A). Nested functions inherit variables from their outer functions

B). Nested functions have their own separate variables

C). Nested functions cannot access outer function variables

D). Nested functions create global variables

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 of the following demonstrates lexical scoping?

A). Closure

B). Hoisting

C). Global scope

D). Local scope

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

A). Hello

B). undefined

C). Error

D). null