1.7. Functional Programming Concepts

Try these first

1. 1.

   What is a first-class function?

   Hint

   Think about how functions can be used like any other data type.

2. 2.

   Define a pure function.

   Hint

   Consider functions that do not affect global variables.

3. 3.

   What is a first-class function?

   • A function that cannot be assigned to variables
   • A function that can be passed as an argument
   • A type of class method

   Hint

   Remember how functions can be used in different contexts.

4. 4.

   True or False: Pure functions can cause side effects.

   • True
   • False

   Hint

   Consider what effects a function can have outside of its return value.

5. 5.

   Implement a function that returns the first n prime numbers using functional programming principles.

   Hint

   Look into higher-order functions like filter and some form of map to generate a list of numbers.

6. 6.

   Explain how you could use recursion to flatten a nested array structure.

   Hint

   Consider base cases where an element is not an array.