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What is the primary purpose of a closure in programming?

• To simplify the syntax of a programming language

• To encapsulate data and functions together

• To execute code asynchronously

• To improve the performance of a program

How does a closure maintain access to variables?

• By creating a new instance of the variables

• By storing the variables in a global object

• By referencing the variables from its lexical scope

• By copying the variables into a new scope

Which of the following is a key benefit of using closures?

• They simplify error handling in code

• They reduce the memory usage of a program

• They increase the speed of code execution

• They allow for the creation of private variables

In what scenario would a closure be particularly useful?

• When you want to execute code in parallel

• When you need to handle large datasets

• When you want to simplify complex algorithms

• When you need to manage state in a function

What is a common misconception about closures?

• They are difficult to implement

• They are only useful in functional programming

• They are slower than other programming constructs

• They can lead to memory leaks if not used carefully