Question 1

What is a pure function?

Accepted Answer

A pure function is a function that, given the same input, will always return the same output and has no side effects. This makes them predictable, testable, and easier to reason about.

Question 2

What is immutability and why is it important in functional programming?

Accepted Answer

Immutability means that once a data structure is created, it cannot be changed. This is important in functional programming because it helps to avoid side effects and makes it easier to reason about the state of the program, especially in concurrent applications.

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