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

Answer & Solution

Answer: Option C
Solution:
Variables defined with var inside a function are not accessible outside of that function.
Related Questions on Average

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 do you declare a function-scoped variable using ES6?

A). var

B). let

C). const

D). function

What is lexical scoping in JavaScript?

A). Variables scoped to the entire codebase

B). Variables scoped to their functions

C). Variables scoped based on their position in the code

D). Variables scoped based on their names

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

A). var

B). let

C). const

D). function

What happens if you declare a variable with the same name in both function and block scopes?

A). It creates two separate variables

B). It causes an error

C). It combines the scopes

D). It prioritizes the function scope

What is the purpose of function scope in JavaScript?

A). To limit the visibility of variables

B). To make variables global

C). To create constants

D). To execute functions

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

Which of the following demonstrates lexical scoping?

A). Closure

B). Hoisting

C). Global scope

D). Local scope

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

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