Q
How should constants be declared to avoid confusion with variable names?

Answer & Solution

Answer: Option A
Solution:
Constants are usually declared in UPPERCASE to distinguish them from variable names.
Related Questions on Average

Can a function and a variable have the same name with different cases in JavaScript?

A). Yes

B). No

C). Only in strict mode

D). Only in non-strict mode

What happens if you try to declare two variables with the same name but different cases?

A). Error

B). Both are declared

C). Only one is declared

D). None of the above

What is the significance of case sensitivity in JavaScript?

A). Enhances code readability

B). Reduces code size

C). Improves performance

D). Differentiates identifiers

Can JavaScript variables 'example' and 'Example' be declared in the same scope?

A). Yes

B). No

C). Only in strict mode

D). Only in non-strict mode

Which of the following will create a case sensitivity error in JavaScript?

A). let firstName = 'John'; let firstname = 'Doe';

B). let FirstName = 'John'; let firstName = 'Doe';

C). let firstName = 'John'; let Firstname = 'Doe';

D). None of the above

How does JavaScript interpret the following? let varName = 5; let VarName = 10; console.log(varName, VarName);

A). 5 5

B). 10 10

C). 5 10

D). 10 5

How does JavaScript differentiate between 'myFunction()' and 'myfunction()'?

A). As the same function

B). As different functions

C). As a syntax error

D). As a reserved keyword

What is the best practice for naming variables to avoid issues with case sensitivity?

A). Use only lowercase

B). Use only UPPERCASE

C). Use consistent case conventions

D). Use special characters

How will JavaScript handle 'VarName' and 'varName' in the same scope?

A). Treat as the same

B). Treat as different

C). Throw an error

D). Ignore one

Which of the following function names are considered identical in JavaScript?

A). myFunction and MyFunction

B). myfunction and myFunction

C). myFunction and myfunction

D). None of the above