The Mystery Variable

Mission Briefing

The Guild requires an anonymous magical spell that can be safely passed around in a container. You'll need to store a function inside a variable to keep it portable.

The Concept: Function Expressions

Functions don't always need a name! You can create an anonymous function and assign it directly to a variable. The variable then acts as the function. This is called a Function Expression.

The Objective

There is a variable called square.

1. Assign an anonymous function to it that receives a parameter n.
2. The function must return the square of n (n * n).