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

Action

What is the primary purpose of using the module pattern?

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What will the following code output?

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Which of the following is true about the module pattern?

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What will the following code output?

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How can you create a module that includes private and public methods?

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What is a common way to instantiate a module pattern?

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Which of the following is an advantage of using the module pattern?

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What will the following code output?

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How does the module pattern differ from the revealing module pattern?

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Which of the following best describes the purpose of using an IIFE in the module pattern?

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What is the primary purpose of using the module pattern?

To create global variables
To avoid variable collisions in the global scope
To allow inheritance
To create dynamic properties

What will the following code output?

<p>const myModule = (function() {<br>&nbsp; let privateVar = 'Private';<br>&nbsp; return {<br>&nbsp; &nbsp; getPrivateVar: function() {<br>&nbsp; &nbsp; &nbsp; return privateVar;<br>&nbsp; &nbsp; },<br>&nbsp; &nbsp; setPrivateVar: function(value) {<br>&nbsp; &nbsp; &nbsp; privateVar = value;<br>&nbsp; &nbsp; }<br>&nbsp; };<br>})();<br>console.log(myModule.getPrivateVar());<br>myModule.setPrivateVar('New Private');<br>console.log(myModule.getPrivateVar());<br><br></p>

Private, New Private
New Private, Private
undefined, New Private
Error

Which of the following is true about the module pattern?

It allows direct access to private variables
It does not allow encapsulation
It helps in creating singleton objects
It requires the use of global variables

What will the following code output?

<p>const counterModule = (function() {<br>&nbsp; let count = 0;<br>&nbsp; return {<br>&nbsp; &nbsp; increment: function() {<br>&nbsp; &nbsp; &nbsp; count++;<br>&nbsp; &nbsp; &nbsp; return count;<br>&nbsp; &nbsp; }<br>&nbsp; };<br>})();<br>console.log(counterModule.increment());<br>console.log(counterModule.increment());<br><br></p>

1, 2
0, 1
1, 1
Error

How can you create a module that includes private and public methods?

By using this for public methods
By returning an object containing methods to be exposed
By defining all methods inside the constructor
By using global variables

What is a common way to instantiate a module pattern?

Using new keyword
Using () => {} syntax
Using an immediately invoked function expression (IIFE)
Using object literal notation

Which of the following is an advantage of using the module pattern?

It prevents memory leaks
It allows all variables to be public
It ensures a cleaner global scope
It increases the size of the codebase

What will the following code output?

<p>const module = (function() {<br>&nbsp; let privateCounter = 0;<br>&nbsp; return {<br>&nbsp; &nbsp; increment: function() {<br>&nbsp; &nbsp; &nbsp; privateCounter++;<br>&nbsp; &nbsp; },<br>&nbsp; &nbsp; getCounter: function() {<br>&nbsp; &nbsp; &nbsp; return privateCounter;<br>&nbsp; &nbsp; }<br>&nbsp; };<br>})();<br><br>module.increment();<br>console.log(module.getCounter());<br><br></p>

0
1
undefined
Error

How does the module pattern differ from the revealing module pattern?

The revealing module pattern exposes all private variables
The module pattern can only return functions
here is no difference between them
The revealing module pattern clearly separates private and public methods

Which of the following best describes the purpose of using an IIFE in the module pattern?

To create a new scope and encapsulate variables
To increase performance
To avoid using closures
To create global variables