Q
What is the purpose of using code blocks in JavaScript?

Answer & Solution

Answer: Option B) To limit variable scope and prevent naming conflicts
Solution:
Code blocks in JavaScript help in organizing code, managing variable scope, and preventing naming conflicts by limiting the visibility and accessibility of variables to specific blocks of code.
Related Questions on Average

What is the purpose of code blocks in JavaScript?

A). A) To group statements together

B). B) To define variables

C). C) To declare functions

D). D) To handle exceptions

What happens to variables declared inside a code block after the block executes?

A). A) They become globally scoped

B). B) They are accessible only within the block

C). C) They are accessible within the function containing the block

D). D) They are accessible outside the block but with limited scope

Which of the following is true about code blocks in JavaScript?

A). A) They can only contain function declarations

B). B) They can contain variable declarations, statements, and functions

C). C) They are used to define object literals

D). D) They are used for loop iterations

How do code blocks contribute to code organization in JavaScript?

A). A) They make code less organized

B). B) They allow for grouping and structuring code

C). C) They introduce naming conflicts

D). D) They limit the use of comments

What is block scope in JavaScript?

A). A) Variables declared inside a block are globally scoped

B). B) Variables declared inside a block have block scope

C). C) Variables declared inside a block have function scope

D). D) Variables declared inside a block have local scope

Which of the following is true about code blocks in JavaScript?

A). A) They can only contain function declarations

B). B) They can contain variable declarations, statements, and functions

C). C) They are used to define object literals

D). D) They are used for loop iterations

How do code blocks affect the scope of variables in JavaScript?

A). A) They make variables globally scoped

B). B) They create block scope for variables

C). C) They limit variable accessibility within functions

D). D) They have no impact on variable scope

What happens to variables declared inside a code block after the block executes?

A). A) They become globally scoped

B). B) They are accessible only within the block

C). C) They are accessible within the function containing the block

D). D) They are accessible outside the block but with limited scope

What is block scope in JavaScript?

A). A) Variables declared inside a block are globally scoped

B). B) Variables declared inside a block have block scope

C). C) Variables declared inside a block have function scope

D). D) Variables declared inside a block have local scope

How do code blocks affect variable scope in JavaScript?

A). A) They make variables globally scoped

B). B) They create block scope for variables

C). C) They limit variable accessibility within functions

D). D) They have no impact on variable scope