Instructions

  • 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
  • 2. Thoroughly review each solution before proceeding to ensure full understanding.
  • 3. Final results will be available after submission to provide insights into areas for further improvement.
  • 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
  • 5. Once submitted, responses are final, so ensure you’re confident in your answers.
  • 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.

All Problems

Question

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What is the main purpose of the module pattern in JavaScript?

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In the module pattern, how are private variables typically created?

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Which of the following is an example of the module pattern?

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What is the key benefit of using the module pattern?

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Which of the following statements about the module pattern is true?

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In the module pattern, how do you expose only certain methods or properties? a

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What will the following code output?

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Can the module pattern be used with classes in ES6?

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How are private variables different from public variables in a module pattern?

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Which of the following is a downside of the module pattern?

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What is the main purpose of the module pattern in JavaScript?

To add dynamic properties to functions
To encapsulate code and create private members
To enhance the performance of objects
To create global variables

In the module pattern, how are private variables typically created?

By using the this keyword
By using closures inside a function
By using object prototypes
By using var instead of let

Which of the following is an example of the module pattern?

const CounterModule = (function() { let count = 0; return { increment: function() { count++; return count; }, reset: function() { count = 0; } }; })();

Prototype pattern
Module pattern
Singleton pattern
Factory pattern

What is the key benefit of using the module pattern?

It allows easy access to global variables
It helps in managing memory leaks
It provides public and private encapsulation
It ensures functions cannot be redefined

Which of the following statements about the module pattern is true?

All variables inside the module are public
Private variables cannot be modified from outside the module
Module pattern does not support closures
Module pattern is only supported in ES6 and above

In the module pattern, how do you expose only certain methods or properties? a

By defining them in the return statement
By attaching them to this
By using the prototype property
By using global variables

What will the following code output?

const myModule = (function() { let privateVar = 'Hello'; return { getPrivateVar: function() { return privateVar; } }; })(); console.log(myModule.getPrivateVar());

Error
Hello
Undefined
Null

Can the module pattern be used with classes in ES6?

Yes, it works similarly to the function-based module pattern
No, it cannot be used with classes
Only in browsers that support ES6 fully
Only if the class is anonymous

How are private variables different from public variables in a module pattern?

Private variables can only be accessed within the module, while public variables are exposed
Public variables can only be used inside the module, while private variables are global
Public variables are copied from private variables
Private variables are initialized after the module is created

Which of the following is a downside of the module pattern?

It creates global variables by default
It can lead to over-complication when nesting modules
It prevents the use of closures
It does not support encapsulation