Q
In JavaScript, which of the following creates a block-scoped variable within a loop?

Answer & Solution

Answer: Option D
Solution:
Both 'let' and 'const' keywords create block-scoped variables within a loop in JavaScript.
Related Questions on Average

In Go, what happens to a variable declared inside a loop after the loop ends?

A). It is still accessible

B). It is garbage collected

C). It becomes nil

D). It throws an error

In C++, where can a variable declared inside a for-loop be accessed?

A). Only within the loop

B). Throughout the function

C). Throughout the file

D). Outside the function

In Python, what happens to a variable declared inside a loop after the loop terminates?

A). It gets destroyed

B). It is still accessible

C). It becomes global

D). It gets re-initialized

In Java, what happens if you declare a variable inside a for loop?

A). It becomes global

B). It is accessible only within the loop

C). It is accessible throughout the class

D). It throws an error

In C#, what is the scope of a variable declared inside a foreach loop?

A). Block-scoped

B). Global-scoped

C). Function-scoped

D). Loop-scoped

Which of the following is true about variables declared with 'let' inside a loop in JavaScript?

A). They are accessible globally

B). They are hoisted to the top

C). They are block-scoped

D). They can be accessed outside the loop

In which programming language is a variable declared inside a loop accessible outside the loop?

A). JavaScript with var

B). Python

C). C++

D). All of the above

In which scenario is a variable declared inside a loop inaccessible outside of it?

A). When using var in JavaScript

B). When using let in JavaScript

C). When using global in Python

D). When using static in C++

What is the difference in scope between variables declared with 'var' and 'let' in JavaScript loops?

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

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

C). var and let are both function-scoped

D). var and let are both block-scoped

What happens to a variable declared inside a loop with 'var' in JavaScript after the loop ends?

A). It is destroyed

B). It is still accessible

C). It becomes undefined

D). It throws an error