In JavaScript, copying objects involves creating a new object that reflects the original object's state. There are two main approaches to copying objects: shallow copy and deep copy.

Functional programming with arrays Although JavaScript’s arrays are very capable out of the box, the functional paradigm improves the clarity and maintainability of array code.

There are new array methods in JavaScript and they are here to make our programs more predictable and maintainable.

️ To complete this challenge: Write and test your code in the provided REPL.it links below (remember to click Save to save your work!), and copy the links to your solutions and paste them into a ...